{"id":402,"date":"2026-07-31T03:26:56","date_gmt":"2026-07-31T09:26:56","guid":{"rendered":"https:\/\/lgcmm.izt.uam.mx\/?page_id=402"},"modified":"2026-10-07T02:08:43","modified_gmt":"2026-10-07T08:08:43","slug":"gravitation-and-cosmology","status":"publish","type":"page","link":"https:\/\/lgcmm.izt.uam.mx\/?page_id=402","title":{"rendered":"Gravitation and Cosmology"},"content":{"rendered":"\n<div class=\"lgm-hero\">\n    <div class=\"lgm-overlay\"><\/div>\n\n    <div class=\"lgm-content\">\n\n        <span class=\"lgm-subtitle\">\n            symposium on\n        <\/span>\n\n        <h1 class=\"lgm-title\">\n            Gravitation and Cosmology\n        <\/h1>\n\n        <div class=\"lgm-divider\"><\/div>\n\n\n    <\/div>\n<\/div>\n\n<style>\n\n.lgm-hero{\n    background:#69725E; \/* Dusty Olive *\/\n    color:white;\n    padding:120px 30px;\n    text-align:center;\n    position:relative;\n    overflow:hidden;\n}\n\n.lgm-overlay{\n    position:absolute;\n    inset:0;\n    background:\n    radial-gradient(circle at top right,\n    rgba(215,133,33,.12),\n    transparent 45%);\n}\n\n.lgm-content{\n    position:relative;\n    z-index:2;\n    max-width:900px;\n    margin:auto;\n}\n\n.lgm-subtitle{\n    display:block;\n    letter-spacing:4px;\n    text-transform:uppercase;\n    color:#D78521;\n    font-size:.95rem;\n    margin-bottom:18px;\n    opacity:0;\n    animation:fadeUp 1s .3s forwards;\n}\n\n.lgm-title{\n\n    font-family:\"Times New Roman\", Times, serif;\n    font-size:clamp(2.8rem,6vw,5.5rem);\n    font-weight:500;\n    line-height:1.1;\n    margin:0;\n\n    color:#E6E4CD;\n\n    opacity:0;\n    transform:translateY(30px);\n    animation:fadeUp 1s .6s forwards;\n\n}\n\n.lgm-divider{\n\n    width:180px;\n    height:2px;\n\n    margin:30px auto;\n\n    background:linear-gradient(\n        90deg,\n        transparent,\n        #D78521,\n        transparent\n    );\n\n    opacity:0;\n\n    animation:fadeUp 1s forwards;\n    animation-delay:1s;\n\n}\n\n.lgm-description{\n\n    max-width:700px;\n    margin:auto;\n    color:#E6E4CD;\n    font-size:1.1rem;\n    line-height:1.8;\n\n    opacity:0;\n    animation:fadeUp 1s 1.6s forwards;\n\n}\n\n@keyframes fadeUp{\n\n    from{\n        opacity:0;\n        transform:translateY(35px);\n    }\n\n    to{\n        opacity:1;\n        transform:translateY(0);\n    }\n\n}\n\n@keyframes expandLine{\n\n    from{\n        width:0;\n    }\n\n    to{\n        width:180px;\n    }\n\n}\n\n.lgm-hero::before{\n\n    content:\"\";\n    position:absolute;\n    width:650px;\n    height:650px;\n    border:1px solid rgba(230,228,205,.08);\n    border-radius:50%;\n    left:-250px;\n    top:-220px;\n\n}\n\n.lgm-hero::after{\n\n    content:\"\";\n    position:absolute;\n    width:500px;\n    height:500px;\n    border:1px solid rgba(230,228,205,.05);\n    border-radius:50%;\n    right:-180px;\n    bottom:-180px;\n\n}\n\n<\/style>\n\n\n\n<div style=\"margin-top:var(--wp--preset--spacing--20);margin-bottom:var(--wp--preset--spacing--20);height:38px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<section class=\"superplenary\">\n\n    <div class=\"superplenary-container\">\n\n        <div class=\"lgm-divider\"><\/div>\n\n        <span class=\"super-label\">Superplenary<\/span>\n\n        <h2>\n           The use of gravitational (quantum) metrological triangles\n        <\/h2>\n\n        <div class=\"super-content\">\n\n            <!-- FOTO + ADSCRIPCI\u00d3N -->\n            <div class=\"super-speaker\">\n\n                <img decoding=\"async\"\n                    src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/07\/Klaus-3.png\"\n                    alt=\"Dr. Claus L\u00e4mmerzahl\"\n                >\n\n                <p class=\"photo-institution\">\n                    University of Bremen\n                <\/p>\n\n            <\/div>\n\n\n            <div class=\"super-info\">\n\n                <h3>\n                    Dr. Claus L\u00e4mmerzahl\n                <\/h3>\n\n                <p class=\"institution\">\n                    More about this speaker soon.\n                <\/p>\n\n                <p class=\"description\">\n                    Though general relativistic effects can be measured with very high precision, the gravitational constant &#8211; one of our most fundamental constants in physics &#8211; can be determined with very low precision only. In electrodynamics there are consistency relations between fundamental constants which are called metrological triangles. We show that such a concept of a metrological triangle can also be introduced in Einstein&#8217;s General Relativity. We show that it is possible to introduce a gravitational classical metrological triangle made of gravitational permittivities and permeabilities as well as of the speed of gravity. This allows to include more existing high precision tests to the exploration of the nature of gravity. As a result it is possible to improve the determination of Solar System general relativistic effects. Beyond this classical metrological triangle it is also possible to introduce a gravitational quantum metrological triangle. This is based on gravitational analogues of the Josephson effect and the quantum Hall effect. This quantum metrological triangle gives additional insight into gravity, suggests new laboratory tests for gravity, and also may allow a new definition of the kilogram.\n                <\/p>\n\n            <\/div>\n\n        <\/div>\n\n    <\/div>\n\n<\/section>\n\n\n<style>\n\n.lgm-divider{\n\n    width:180px;\n    height:2px;\n\n    background:linear-gradient(\n        90deg,\n        transparent,\n        #D78521,\n        transparent\n    );\n\n    margin:35px auto;\n\n}\n\n\n.superplenary{\n\n    background:#550527;\n\n    padding:100px 20px;\n\n    color:#F8F7F2;\n\n    overflow:hidden;\n\n}\n\n\n.superplenary-container{\n\n    max-width:1100px;\n\n    margin:auto;\n\n    text-align:center;\n\n}\n\n\n\/* Etiqueta *\/\n\n.super-label{\n\n    font-family:\"Times New Roman\", serif;\n\n    letter-spacing:.4em;\n\n    text-transform:uppercase;\n\n    font-size:.8rem;\n\n    color:#E6E4CD;\n\n}\n\n\n\/* T\u00edtulo *\/\n\n.superplenary h2{\n\n    font-family:\"Times New Roman\", serif;\n\n    font-weight:400;\n\n    font-size:3rem;\n\n    margin:25px 0 60px;\n\n    letter-spacing:.03em;\n\n    color:#F8F7F2 !important;\n\n}\n\n\n\/* Contenido *\/\n\n.super-content{\n\n    display:flex;\n\n    align-items:center;\n\n    justify-content:center;\n\n    gap:60px;\n\n    text-align:left;\n\n}\n\n\n\/* Contenedor de foto *\/\n\n.super-speaker{\n\n    width:280px;\n\n    flex-shrink:0;\n\n    text-align:center;\n\n}\n\n\n\/* Foto *\/\n\n.super-content img{\n\n    width:280px;\n\n    height:280px;\n\n    object-fit:cover;\n\n    border-radius:50%;\n\n    border:3px solid rgba(215,133,33,.8);\n\n    display:block;\n\n}\n\n\n\/* Adscripci\u00f3n debajo de la foto *\/\n\n.photo-institution{\n\n    margin:18px 0 0;\n\n    color:#D78521;\n\n    font-family:\"Times New Roman\", serif;\n\n    font-size:.95rem;\n\n    letter-spacing:.08em;\n\n    text-align:center;\n\n}\n\n\n\/* Informaci\u00f3n *\/\n\n.super-info{\n\n    max-width:450px;\n\n}\n\n\n.super-info h3{\n\n    font-family:\"Times New Roman\", serif;\n\n    font-size:2rem;\n\n    font-weight:400;\n\n    margin-bottom:10px;\n\n    color:#F8F7F2 !important;\n\n}\n\n\n.institution{\n\n    color:#D78521;\n\n    letter-spacing:.15em;\n\n    text-transform:uppercase;\n\n    font-size:.85rem;\n\n}\n\n\n\/* Texto justificado *\/\n\n.super-info .description{\n\n    color:#E6E4CD;\n\n    line-height:1.7;\n\n    text-align:justify;\n\n}\n\n\n\/* Responsive *\/\n\n@media(max-width:800px){\n\n    .super-content{\n\n        flex-direction:column;\n\n        text-align:center;\n\n    }\n\n    .super-speaker{\n\n        width:280px;\n\n    }\n\n    .super-info{\n\n        max-width:100%;\n\n    }\n\n    .superplenary h2{\n\n        font-size:2rem;\n\n    }\n\n    .super-info .description{\n\n        text-align:justify;\n\n    }\n\n}\n\n\n\/* Animaci\u00f3n scroll *\/\n\n.superplenary{\n\n    opacity:0;\n\n    transform:translateY(50px);\n\n    transition:1s ease;\n\n}\n\n\n.superplenary.show{\n\n    opacity:1;\n\n    transform:translateY(0);\n\n}\n\n<\/style>\n\n\n<script>\n\ndocument.addEventListener(\"DOMContentLoaded\",()=>{\n\n    const section=document.querySelector(\".superplenary\");\n\n    const observer=new IntersectionObserver(entries=>{\n\n        entries.forEach(entry=>{\n\n            if(entry.isIntersecting){\n\n                section.classList.add(\"show\");\n\n            }else{\n\n                section.classList.remove(\"show\");\n\n            }\n\n        });\n\n    },{threshold:.2});\n\n    observer.observe(section);\n\n});\n\n<\/script>\n\n\n\n<div style=\"height:0px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<!-- ===================================================== -->\n<!-- PLENARY SPEAKERS -->\n<!-- ===================================================== -->\n\n<section class=\"speakers-section\">\n\n    <h2 class=\"section-title\">Plenary Speakers<\/h2>\n\n    <div class=\"speaker-grid\">\n\n        <!-- SPEAKER 1 -->\n        <div class=\"speaker-card\">\n\n            <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/07\/Tim-Eifler.png\" class=\"speaker-photo\" alt=\"Tim Eifler\">\n\n            <h3>Tim Eifler<\/h3>\n\n            <p class=\"institution\">\n                University of Arizona\n            <\/p>\n\n            <h4 class=\"talk-title\">\n                Cosmology with the Roman Space Telescope\n            <\/h4>\n\n            <button class=\"view-details-btn\" type=\"button\" data-name=\"Tim Eifler\" data-institution=\"University of Arizona\" data-talk=\"Cosmology with the Roman Space Telescope\" data-photo=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/07\/Tim-Eifler.png\" data-abstract=\"The Nancy Grace Roman Space Telescope launched successfully on August 30 and is well on its way to L2. After commissioning, it will provide an unprecedented amount of cosmological information to the community world-wide. This talk will review the state of the art of cosmological measurements from the Dark Energy Survey and the Dark Energy Spectroscopic Instrument before detailing the Roman Space Telescope's capabilities to measure geometry and structure growth in the Universe. I will outline Roman's main cosmological science cases and discuss systematic effects that pose challenges to extract the cosmological information. \" data-bio=\"Dr. Eifler got his PhD in 2009 from the University of Bonn, Germany. He held postdoctoral positions at the Ohio State University and the University of Pennsylvania before becoming a staff scientist at NASA-JPL and then faculty at UArizona. Dr. Eifler joined Steward Observatory in August 2018. His research focuses on testing models of cosmological structure formation (dark energy, dark matter, modified gravity) through statistical data analysis. He is interested in optimally extracting the cosmological information from ongoing and future datasets such as the Dark Energy Survey, the Dark Energy Spectroscopic Instrument, Rubin Observatory, the NASA SPHEREx explorer satellite, the Nancy Grace Roman Space Telescope, and future CMB experiments. A key element of his research is to combine multiple probes and measurements, e.g. weak lensing, galaxy clustering, galaxy clusters and CMB lensing.\">\n                View Details\n            <\/button>\n\n        <\/div>\n\n\n        <!-- SPEAKER 2 -->\n        <div class=\"speaker-card\">\n\n            <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Carlos-Sopuerta.jpg\" class=\"speaker-photo\" alt=\"Carlos F. Sopuerta\">\n\n            <h3>Carlos F. Sopuerta<\/h3>\n\n            <p class=\"institution\">\n                Institute of Space Sciences\n            <\/p>\n\n            <h4 class=\"talk-title\">\n                Solitonic echoes: Hidden symmetries behind Black Hole resonances \n            <\/h4>\n\n            <button class=\"view-details-btn\" type=\"button\" data-name=\"Carlos F. Sopuerta\" data-institution=\"Institute of Space Sciences\" data-talk=\"Solitonic echoes: Hidden symmetries behind Black Hole resonances \" data-photo=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Carlos-Sopuerta.jpg\" data-abstract=\"Shallow-water waves are governed by the Korteweg-de Vries (KdV) equation, a very special equation first proposed to describe how perturbations propagate along a fluid surface, directly tied to the surface gravity. What makes the KdV equation truly remarkable is that it turns out to be completely integrable, and that it also appears in entirely different physical settings, such as plasma physics, nonlinear optics, and condensed-matter systems.\n\nAt the other end of the physical spectrum sit black holes (BHs), one of the wildest predictions of Einstein's General Relativity. A central theme in BH physics is understanding the physical phenomena that take place around them, such as scattering processes and the excitation of quasinormal modes. To that end, BH perturbation theory was developed as the natural framework to study these processes. Remarkably, the dynamics of these perturbations reduce to a set of master variables obeying Schr\u00f6dinger-type equations, whose solutions carry the full physical information about the system.\n\nIn this talk, I will show that these master equations, even though they describe fully generic gravitational dynamics, hide an infinite family of symmetries. A distinguished subset of them turns out to be tied to the flow generated by the KdV equation and its associated integrable hierarchy. This structure leads to balance laws that let us compute BH scattering probabilities directly from these symmetries and their conserved quantities.\n\nFinally, I will discuss the mathematical and physical implications of this unexpected connection between integrable systems, in particular the KdV hierarchy, and BH physics, along with a few directions for future work. \n\" data-bio=\"Dr. Sopuerta works at the Institute of Space Sciences (ICE, CSIC &amp; IEEC) since September 2007. He is currently a Tenured Scientific Researcher (Investigador Cient\u00edfico). His research interests are in the area of Gravitational Physics, with focus on Gravitational Wave Astronomy and the Laser Interferometer Space Antenna (LISA) collaboration.\">\n                View Details\n            <\/button>\n\n        <\/div>\n\n\n <!-- SPEAKER 2.1 -->\n        <div class=\"speaker-card\">\n\n            <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Martin-Bojowald.jpg\" class=\"speaker-photo\" alt=\"Carlos F. Sopuerta\">\n\n            <h3>Martin Bojowald<\/h3>\n\n            <p class=\"institution\">\n                Pennsylvania State University\n            <\/p>\n\n            <h4 class=\"talk-title\">\n                Solitonic echoes: Hidden symmetries behind Black Hole resonances\n            <\/h4>\n\n            <button class=\"view-details-btn\" type=\"button\" data-name=\"Martin Bojowald\" data-institution=\"Pennsylvania State University\" data-talk=\"Talk Title: To be announced \" data-photo=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Martin-Bojowald.jpg\" data-abstract=\"Shallow-water waves are governed by the Korteweg-de Vries (KdV) equation, a very special equation first proposed to describe how perturbations propagate along a fluid surface, directly tied to the surface gravity. What makes the KdV equation truly remarkable is that it turns out to be completely integrable, and that it also appears in entirely different physical settings, such as plasma physics, nonlinear optics, and condensed-matter systems.\n\nAt the other end of the physical spectrum sit black holes (BHs), one of the wildest predictions of Einstein's General Relativity. A central theme in BH physics is understanding the physical phenomena that take place around them, such as scattering processes and the excitation of quasinormal modes. To that end, BH perturbation theory was developed as the natural framework to study these processes. Remarkably, the dynamics of these perturbations reduce to a set of master variables obeying Schr\u00f6dinger-type equations, whose solutions carry the full physical information about the system.\n\nIn this talk, I will show that these master equations, even though they describe fully generic gravitational dynamics, hide an infinite family of symmetries. A distinguished subset of them turns out to be tied to the flow generated by the KdV equation and its associated integrable hierarchy. This structure leads to balance laws that let us compute BH scattering probabilities directly from these symmetries and their conserved quantities.\n\nFinally, I will discuss the mathematical and physical implications of this unexpected connection between integrable systems, in particular the KdV hierarchy, and BH physics, along with a few directions for future work.\" data-bio=\" Dr. Bojowald received his Ph.D. in 2000 from RWTH Aachen University. His research focuses on different aspects whose common theme is their relevance for formulations of quantum gravity. Dr. Bojowald is one of the leading experts on Loop Quantum Cosmology. He has been the recipient of numerous awards and is currently an Associate Professor of Physics at the Pennsylvania State University. \">\n                View Details\n            <\/button>\n\n        <\/div>\n  \n\n<!-- SPEAKER 3 -->\n        <div class=\"speaker-card\">\n\n            <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Luis-Urena.png\" class=\"speaker-photo\" alt=\"Tim Eifler\">\n\n            <h3>Luis Ure\u00f1a<\/h3>\n\n            <p class=\"institution\">\n                University of Guanajuato\n            <\/p>\n\n            <h4 class=\"talk-title\">\n                Ultralight axions in dark energy and dark matter models \n            <\/h4>\n\n            <button class=\"view-details-btn\" type=\"button\" data-name=\"Luis Ure\u00f1a\" data-institution=\"University of Guanajuato\" data-talk=\"Ultralight axions in dark energy and dark matter models\" data-photo=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Luis-Urena.png\" data-abstract=\"In the first part of this talk, we present constraints on axion quintessence dark energy using the latest cosmological observations. Focusing on the physical parameters of the model, we find a preferred axion mass of log\u206110(ma\/eV)\u2243\u221232.6 and a decay constant of log\u206110(fa\/MPl)\u22430.1. We perform a Bayesian model comparison with the standard cosmological constant scenario and show that axion quintessence provides a competitive description of current data. For the second part, we present the possibility to consider the same axion model for dark matter, but now for an axion mass of the order of log\u206110(ma\/eV)\u2243-22. We will discuss the predictions of the model for the formation of galaxies and their distribution, and what constraints we can obtain for the axion mass from present observations. We will close with general conclusions and future possibilities for the models. \" data-bio=\"Dr. Ure\u00f1a got his PhD in 2001. In 2002, he carried out a postdoctoral stay at the Astronomy Centre of the University of Sussex, with the work group of Prof. Andrew Liddle. He became professor at the Division of Sciences and Engineering of the University of Guanajuato in 2003. Dr. Ure\u00f1a was vicepresidente of the Divisi\u00f3n of Gravitation and Mathematical Physics of the Mexican Physics Society from 2009 to 2011, being its designated President in the period 2011- 2013. His research interests are the phenomenology of inflation, dark matter and dark energy, three central actors in modern Cosmology.\">\n                View Details\n            <\/button>\n\n        <\/div>\n\n<!-- SPEAKER 4 -->\n        <div class=\"speaker-card\">\n\n            <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Tonatiuh-Matos.png\" class=\"speaker-photo\" alt=\"Tim Eifler\">\n\n            <h3>Tonatiuh Matos<\/h3>\n\n            <p class=\"institution\">\n                CINVESTAV\n            <\/p>\n\n            <h4 class=\"talk-title\">\n                CMaDE Inflation \n            <\/h4>\n\n            <button class=\"view-details-btn\" type=\"button\" data-name=\"Tonatiuh Matos\" data-institution=\"CINVESTAV\" data-talk=\"Talk Title: To be announced\" data-photo=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Tonatiuh-Matos.png\" data-abstract=\" We live immersed in a Gravitational Wave Background (GWB) that spans all frequencies. With this in mind, we developed a model covering the period from inflation to the present day\u2014capable of explaining the earliest moments and the accelerated expansion of our universe\u2014that is at least as effective as the standard model at reproducing the observed universe. In this talk, we present the model, explain how it connects the inflationary epoch to the present day, and compare the observed universe with that model.\" data-bio=\"Tonatiuh Matos studied for a bachelor's degree in physics and mathematics and then for a master's degree in physics at the Escuela Superior de F\u00edsica y Matem\u00e1ticas of the IPN. He received his PhD in Theoretical Physics in 1987 at the Friedrich-Schiller University of Jena, Germany and obtained his Habilitation in Astrophysics in 1998 at the same university. He was Founding Vice President of the Gravitation and Mathematical Physics Division of the Mexican Physical Society (SMF) in 1992 and then President of the same in 1995. He has published more than 220 articles. His work now focuses on finding the nature of dark matter and dark energy, which account for more than 96% of the matter in the universe. In 1998 he proposed that dark matter could be a spinless particle with ultra-light mass, and initiated the first systematic study of this paradigm in the world. This model is now one of the most popular and favorite models for dark matter, which accounts for 25% of the matter in the universe.\n\">\n                View Details\n            <\/button>\n\n        <\/div>\n\n\n<!-- CONTRIBUTOR 4.2 -->\n        <!-- Duplica esta tarjeta y sustituye la informaci\u00f3n -->\n\n        <div class=\"speaker-card\">\n\n            <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Alejandro-Corichi.jpeg\" class=\"speaker-photo\" alt=\"Contributor Name\">\n\n            <h3>Alejandro Corichi<\/h3>\n\n            <p class=\"institution\">\n                Centro de Ciencias Matem\u00e1ticas UNAM, Campus Morelia\n            <\/p>\n\n            <h4 class=\"talk-title\">\n                Talk Title: To be announced\n            <\/h4>\n\n            <button class=\"view-details-btn\" type=\"button\" data-name=\"Alejandro Corichi\" data-institution=\"Centro de Ciencias Matem\u00e1ticas UNAM, Campus Morelia\" data-talk=\"Talk Title: To be announced\" data-photo=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Alejandro-Corichi.jpeg\" data-abstract=\"More about this speaker soon.\" data-bio=\"Dr. Corichi obtained his PhD from the Pennsylvania State University in 1997. His research interests are mainly in classical and quantum gravity. He is an expert on loop quantum gravity, a non-perturbative canonical quantization program for gravity. \">\n                View Details\n            <\/button>\n\n        <\/div>\n\n\n        <!-- SPEAKER EA -->\n\n       <div class=\"speaker-card\">\n\n            <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Eloy-Ayon-Beato.jpeg\" class=\"speaker-photo\" alt=\"Contributor Name\">\n\n            <h3>Eloy Ay\u00f3n Beato<\/h3>\n\n            <p class=\"institution\">\n                CINVESTAV\n            <\/p>\n\n            <h4 class=\"talk-title\">\n                Non-Noetherian conformal Cheshire effect \n            <\/h4>\n\n            <button class=\"view-details-btn\" type=\"button\" data-name=\"Eloy Ay\u00f3n Beato\" data-institution=\"CINVESTAV\" data-talk=\"Talk Title: To be announced\" data-photo=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Eloy-Ayon-Beato.jpeg\" data-abstract=\"The gravitational Cheshire effect refers to the possibility of turning off the gravitational field while still leaving an imprint of the nonminimal coupling of matter to gravity. This allows nontrivial solutions in flat spacetime for which no backreaction is possible. The effect was originally shown to manifest itself for standard nonminimal couplings, such as those allowing conventional conformally invariant scalar fields. Recently, the most general scalar field action yielding a conformally invariant second-order equation was constructed, and entails a more involved nonminimal coupling explicitly breaking the conformal invariance of the action without spoiling it in the equation. We have succeeded in fully describing the spherically symmetric stealth solutions on flat spacetime supporting the Cheshire effect within this general non-Noetherian conformal theory. The allowed configurations are divided into two branches: The first one essentially corresponds to an extension of the solutions already known for the standard Noetherian conformal theory. The second branch is only possible due to the non-Noetherian conformal contribution of the action. The complete characterization of this branch is expressed by a nonlinear first-order partial differential equation. We have found the general solution of this equation using both seemingly new and well-established mathematical tools.\" data-bio=\"Dr. Ay\u00f3n Beato got his PhD. from CINVESTAV in 2000. His research interests focus on gravitation and nonlinear electrodynamics. Dr. Ay\u00f3n Beato, in collaboration with Dr. Alberto Garc\u00eda, formulated the first regular exact black hole solution in General Relativity.\">\n                View Details\n            <\/button>\n\n        <\/div>\n\n<\/div>\n<\/section>\n\n\n<!-- ===================================================== -->\n<!-- CONTRIBUTIONS BANNER -->\n<!-- ===================================================== -->\n\n<div class=\"contributions-banner\">\n    <span>Contributions<\/span>\n<\/div>\n\n\n<!-- ===================================================== -->\n<!-- CONTRIBUTORS -->\n<!-- Todas las tarjetas de contributors van dentro de este grid -->\n<!-- ===================================================== -->\n\n<section class=\"speakers-section contributions-section\">\n\n    <div class=\"speaker-grid\">\n\n        <!-- CONTRIBUTOR 1 -->\n        <div class=\"speaker-card\">\n\n            <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Omar-Lopez-Cruz.jpg\" class=\"speaker-photo\" alt=\"Omar L\u00f3pez Cruz\">\n\n            <h3>Omar L\u00f3pez Cruz<\/h3>\n\n            <p class=\"institution\">\n                INAOE\n            <\/p>\n\n            <h4 class=\"talk-title\">\n                Star Formation under the Magnifying Glass in a  Galaxy at z ~ 3 \n            <\/h4>\n\n            <button class=\"view-details-btn\" type=\"button\" data-name=\"Omar L\u00f3pez Cruz\" data-institution=\"INAOE\" data-talk=\"Star Formation under the Magnifying Glass in a  Galaxy at z ~ 3 \" data-photo=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Omar-Lopez-Cruz.jpg\" data-abstract=\"The combination of telescopes and galaxy clusters functioning as gravitational lenses is referred to as Natural Telescopes. This approach enables detailed examination of the dynamics and morphology of distant galaxies that would otherwise remain unobservable. In this talk, we present new observations of the Bullet Cluster obtained with the James Webb Space Telescope (JWST). The resulting data refine the Bullet Cluster lensing map and resolve, at sub-kiloparsec resolution, the giant molecular clouds in the highly magnified submillimeter galaxy behind the Bullet Cluster, known as the Cosmic Seagull at redshift z = 2.7768 +\/- 0.0002. We trace the evolution of observational capabilities, from the initial discovery of the Cosmic Seagull with single-dish telescopes to later advances with space telescopes and submillimeter arrays.\" data-bio=\"Dr. L\u00f3pez obtained his BSc degree at the Escuela Superior de F\u00edsica Matem\u00e1tica (IPN, Mexico). He obtained his MSc and PhD in Astronomy from the University of Toronto in 1991 and 1997, respectively. Dr. L\u00f3pez is a leading expert in the study of the formation and evolution of galaxies. He has been the recipient of several awards, including the Michael S. Fields Memorial Award by the University of Toronto in 1995 and a Fulbright Fellowship from the U.S. Department of State in 2001.\">\n                View Details\n            <\/button>\n\n        <\/div>\n\n\n<!-- CONTRIBUTOR 3  -->\n        <!-- Duplica esta tarjeta y sustituye la informaci\u00f3n -->\n\n        <div class=\"speaker-card\">\n\n            <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Guillermo-Chacon-Acosta.jpg\" class=\"speaker-photo\" alt=\"Contributor Name\">\n\n            <h3>Guillermo Chac\u00f3n Acosta<\/h3>\n\n            <p class=\"institution\">\n                UAM-Cuajimalpa\n            <\/p>\n\n            <h4 class=\"talk-title\">\n                Relativistic Equilibrium Distribution in Rapidity Space\n            <\/h4>\n\n            <button class=\"view-details-btn\" type=\"button\" data-name=\"Guillermo Chac\u00f3n Acosta\" data-institution=\"UAM-Cuajimalpa\" data-talk=\"Relativistic Equilibrium Distribution in Rapidity Space\" data-photo=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Guillermo-Chacon-Acosta.jpg\" data-abstract=\"We reformulate the relativistic Boltzmann kinetic equation using rapidity as the fundamental dynamical variable. Owing to its Lorentz-invariant character and additive transformation law under boosts, rapidity provides a natural framework for relativistic kinetic theory. The associated equilibrium distribution is derived, its statistical and physical properties are examined. Its behavior is with the standard J\u00fcttner distribution, emphasizing potential applications in relativistic statistical mechanics.\n\" data-bio=\"Dr. Chac\u00f3n Acosta obtained his PhD. from UAM-Iztapalapa. He has specialized in the study of the in- and out-of-equilibrium statistical physics of various systems, particularly relativistic high-temperature gases. He has also worked on applying these tools to quantum systems for the study of the phenomenology of quantum gravity and recently on social processes such as model economies and option price variation. Currently, he has started to work on the study of diffusion theory in confined systems, curved surfaces, and networks, being of interest the mathematics behind pattern formation.\">\n                View Details\n            <\/button>\n\n        <\/div>\n\n        \n\n\n<!-- CONTRIBUTOR 4  -->\n        <!-- Duplica esta tarjeta y sustituye la informaci\u00f3n -->\n\n        <div class=\"speaker-card\">\n\n            <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Miguel-Alcubierre.jpg\" class=\"speaker-photo\" alt=\"Contributor Name\">\n\n            <h3>Miguel Alcubierre<\/h3>\n\n            <p class=\"institution\">\n                Instituto de Ciencias Nucleares, UNAM\n            <\/p>\n\n            <h4 class=\"talk-title\">\n                Electrically charged bosonic stars \n            <\/h4>\n\n            <button class=\"view-details-btn\" type=\"button\" data-name=\"Miguel Alcubierre\" data-institution=\"Instituto de Ciencias Nucleares, UNAM\" data-talk=\"Electrically charged bosonic stars \" data-photo=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Miguel-Alcubierre.jpg\" data-abstract=\"In this talk I will discuss some recent results related to the study of electrically charged bosonc stars.  Such objects are self gravitating systems in general relativity formed by massive complex bosonic charged fields, such as the Klein-Gordon and Proca fields. I will considere the particular case of spherical symmetry, and discuss the properties of stationary configurations, as well as their stability against perturbations. \" data-bio=\"Dr. Alcubierre obtained his BSc. and MSc. from the Facultad de Ciencias at UNAM in 1988 and 1990 respectively. From the University of Wales he obtained his PhD in 1994. He is a full time researcher at the Instituto de Ciencias Nucleares since 2002, specializing in black holes, gravitational waves, dark matter, numerical relativity and alternative theories of gravitation.  \">\n                View Details\n            <\/button>\n\n        <\/div>\n\n\n<!-- CONTRIBUTOR 5  -->\n        <!-- Duplica esta tarjeta y sustituye la informaci\u00f3n -->\n\n        <div class=\"speaker-card\">\n\n            <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Ana-Laura-Garcia-Perciante.jpg\" class=\"speaker-photo\" alt=\"Contributor Name\">\n\n            <h3>Ana Laura Garc\u00eda Perciante<\/h3>\n\n            <p class=\"institution\">\n                 UAM-Cuajimalpa\n            <\/p>\n\n            <h4 class=\"talk-title\">\n                Dissipation in Relativistic Fluids: General First-Order Constitutive Equations.\n            <\/h4>\n\n            <button class=\"view-details-btn\" type=\"button\" data-name=\"Ana Laura Garc\u00eda Perciante\" data-institution=\" UAM-Cuajimalpa\" data-talk=\"Dissipation in Relativistic Fluids: General First-Order Constitutive Equations.\" data-photo=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Ana-Laura-Garcia-Perciante.jpg\" data-abstract=\"General first-order theories of relativistic dissipative fluids have been shown to be physically sound. However, their extension to multicomponent charged fluids has not yet been established, despite their importance in astrophysics, cosmology, and high energy physics. We develop a general first-order formalism for a relativistic dissipative fluid composed of an arbitrary number of species in the presence of a weak background electromagnetic field, in the spirit of the BDNK framework. Throughout this work, the electromagnetic force acting on each species is assumed to be of the same order as the gradients of thermodynamic state variables and is therefore treated as a first-order driving force for dissipation within the gradient expansion. We derive the entropy production and formulate the constitutive relations in terms of first-order frame-invariant quantities. We further establish the conditions under which the transport coefficients satisfy Onsager's reciprocal relations and the second law of thermodynamics. Finally, we construct a complete, closed set of evolution equations for a binary mixture within a family of frames in which hyperbolicity, causality, and stability have already been established for the single-component fluid.\" data-bio=\"Professor Ana Laura Garc\u00eda Perciante obtained her bacherlor\u2019s degree in Engeneering Physics at Universidad Iberoamericana and the MS and PhD ones at the University of Wisconsin, being her mayor and minor areas Phyisics and Mathematics respectively. She is a full time professor at UAM-C and a member of SNI since 2006. Her research topics focus on relativistic kinetic theory, gravitation and the stability of high temperature gases. In these areas, she has published over 50 scientific papers and given various conferences and courses since 2002.\">\n                View Details\n            <\/button>\n\n        <\/div>\n\n\n<!-- CONTRIBUTOR 6 -->\n\n<div class=\"speaker-card\">\n\n    <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/David-Vergara.png\" class=\"speaker-photo\" alt=\"David Vergara\">\n\n    <h3>David Vergara<\/h3>\n\n    <p class=\"institution\">\n        Instituto de Ciencias Nucleares, UNAM\n    <\/p>\n\n    <h4 class=\"talk-title\">\n        N-bein formalism for degenerate states in the parameter space of quantum geometry\n    <\/h4>\n\n    <button class=\"view-details-btn\" type=\"button\" data-name=\"David Vergara\" data-institution=\"Instituto de Ciencias Nucleares, UNAM\" data-talk=\"N-bein formalism for degenerate states in the parameter space of quantum geometry\" data-photo=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/David-Vergara.png\" data-abstract=\"In this talk, we extend the geometric framework of the N-bein formalism\u2014an orthonormal-frame analogue of the Cartan formalism that acts as the &quot;square root&quot; of the quantum geometric tensor (QGT)\u2014to systems with degenerate spectra. We define a non-Abelian two-state QGT to identify possible transitions between states after two consecutive parameter variations. Additionally, using the Wilczek\u2013Zee connection, we introduce a torsion-like tensor as the covariant derivative of the N-bein. This torsion captures the noncommutativity of successive variations and coincides with the antisymmetric part of the QGT. We also present a geometrical formulation in terms of differential forms and discuss the physical implications of the newly defined tensors. Furthermore, we construct several gauge-invariant observables from the N-bein and its derivatives, highlighting the utility of the new formalism.\" data-bio=\"Dr. Vergara obtained his PhD from UNAM in 1989. He is a full-time researcher at the Instituto de Ciencias Nucleares, UNAM. His research interests include noncommutative geometry, fuzzy spaces, quantum information, and quantum field theory.\">\n        View Details\n    <\/button>\n\n<\/div>\n\n\n<!-- CONTRIBUTOR 7  -->\n        <!-- Duplica esta tarjeta y sustituye la informaci\u00f3n -->\n\n        <div class=\"speaker-card\">\n\n            <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Alberto-Molgado-Ramos.jpg\" class=\"speaker-photo\" alt=\"Contributor Name\">\n\n            <h3>Alberto Molgado Ramos<\/h3>\n\n            <p class=\"institution\">\n                Universidad Aut\u00f3noma de San Luis Potos\u00ed\n            <\/p>\n\n            <h4 class=\"talk-title\">\n                Phase space quantization of anisotropic cosmologies \n            <\/h4>\n\n            <button class=\"view-details-btn\" type=\"button\" data-name=\"Alberto Molgado Ramos\" data-institution=\"Universidad Aut\u00f3noma de San Luis Potos\u00ed\" data-talk=\"Phase space quantization of anisotropic cosmologies \" data-photo=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Alberto-Molgado-Ramos.jpg\" data-abstract=\"We introduce an explicit construction of the non-diagonal and diagonal Wigner distributions for the homogeneous but anisotropic Taub and Kantowski-Sachs cosmological models within the framework of phase space deformation quantization. Conventional canonical quantization of these models via the Wheeler-DeWitt equation is inherently plagued by factor ordering ambiguities. To circumvent these issues, we employ the totally symmetric Weyl quantization map and the Moyal star product. By means of a canonical separation of the Hamiltonian constraint, we are able to resolve the formal convergence problems typically associated with the star product. Furthermore, to establish a rigorous connection with conventional quantum cosmology, we calculate the standard wave functions directly from the diagonal Wigner distributions, recovering the exact physical states in terms of modified Bessel functions in both cases.\" data-bio=\"More about this speaker soon.\">\n                View Details\n            <\/button>\n\n        <\/div>\n\n\n<!-- CONTRIBUTOR 8   -->\n        <!-- Duplica esta tarjeta y sustituye la informaci\u00f3n -->\n\n        <div class=\"speaker-card\">\n\n            <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Hernando-Quevedo.jpg\" class=\"speaker-photo\" alt=\"Contributor Name\">\n\n            <h3>Hernando Quevedo<\/h3>\n\n            <p class=\"institution\">\n                Instituto de Ciencias Nucleares, UNAM\n            <\/p>\n\n            <h4 class=\"talk-title\">\n                Entropy and time \n            <\/h4>\n\n            <button class=\"view-details-btn\" type=\"button\" data-name=\"Hernando Quevedo\" data-institution=\"Instituto de Ciencias Nucleares, UNAM\" data-talk=\"Entropy and time\" data-photo=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Hernando-Quevedo.jpg\" data-abstract=\"Using the formalism of geometrothermodynamics, we show that in the space of equilibrium states of any thermodynamic system, entropy can be used as time parameter similar to the proper time. The laws of thermodynamics are satisfied along the curves parametrized by the entropy and, in particular, the second law determines the arrow of time.\n\" data-bio=\"Dr. Quevedo obtained his PhD from University of K\u00f6ln in 1987. He became a member of the Instituto de Ciencias Nucleares in 1992, specializing in general relativity, field theories and quantum gravity. Dr. Quevedo is the proponent of geometrothermodynamics, a framework to analyse thermodynamics systems using techniques of differential geometry.\">\n                View Details\n            <\/button>\n\n        <\/div>\n\n\n<!-- CONTRIBUTOR 9  -->\n        <!-- Duplica esta tarjeta y sustituye la informaci\u00f3n -->\n\n        <div class=\"speaker-card\">\n\n            <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Sebastien-Fromenteau.jpg\" class=\"speaker-photo\" alt=\"Contributor Name\">\n\n            <h3>Sebastien Fromenteau<\/h3>\n\n            <p class=\"institution\">\n                Instituto de Ciencias F\u00edsicas, UNAM\n            <\/p>\n\n            <h4 class=\"talk-title\">\n                Machine Learning the Universe: From Galaxies to Cosmology \n            <\/h4>\n\n            <button class=\"view-details-btn\" type=\"button\" data-name=\"Sebastien Fromenteau\" data-institution=\"Instituto de Ciencias F\u00edsicas, UNAM\" data-talk=\"Machine Learning the Universe: From Galaxies to Cosmology\" data-photo=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Sebastien-Fromenteau.jpg\" data-abstract=\"Modern cosmology aims to extract information about the origin, composition, and evolution of the Universe from increasingly large and precise observational datasets. Traditionally, this process relies on compressing the data into summary statistics and comparing them with theoretical models within a Bayesian inference framework. However, the growing complexity of these datasets, the nonlinear evolution of cosmic structures, and the challenging connection between the underlying matter distribution and the galaxies we observe pose new difficulties for this standard approach.\n\n\nIn this talk, we will present, from a pedagogical perspective, how Machine Learning can help address these challenges. We will first explore its use in accelerating traditional calculations through emulators and related methods, before introducing a more fundamental shift in the way cosmological inference can be performed: Simulation-Based Inference and Field-Level Inference. Finally, we will discuss some perspectives on how these tools may transform the way we extract and model the information encoded in the Universe.\n\" data-bio=\"More about this speaker soon.\">\n                View Details\n            <\/button>\n\n        <\/div>\n\n   <!-- CONTRIBUTOR 10 -->\n        <!-- Duplica esta tarjeta y sustituye la informaci\u00f3n -->\n\n        <div class=\"speaker-card\">\n\n            <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Miguel-Sabido.jpg\" class=\"speaker-photo\" alt=\"Contributor Name\">\n\n            <h3>Miguel Sabido<\/h3>\n\n            <p class=\"institution\">\n                Universidad de Guanajuato, Campus Le\u00f3n\n            <\/p>\n\n            <h4 class=\"talk-title\">\n                Entropic cosmology, late time acceleration and the quantum bounce \n            <\/h4>\n\n            <button class=\"view-details-btn\" type=\"button\" data-name=\"Miguel Sabido\" data-institution=\"Universidad de Guanajuato, Campus Le\u00f3n\" data-talk=\"Entropic cosmology, late time acceleration and the quantum bounce\" data-photo=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Miguel-Sabido.jpg\" data-abstract=\"We present a unified entropic framework linking the early quantum bounce in Loop Quantum Cosmology (LQC) with late-time dark energy acceleration. By introducing a fundamental minimal area A0\u200b and a composite modified entropy functional (SQ\u200b+SBH\u200b+SDE\u200b), we derive the modified Friedmann equations.\nWe show that in the ultraviolet limit (A\u223cA0\u200b), a critical density naturally generates the quantum bounce. In the infrared limit (A\u226bA0\u200b), the late-time dynamics yields an accelerating scale factor. Thus, this model offers a compelling thermodynamic origin for both cosmic regimes.\n\" data-bio=\"Dr. Sabido is a full-time researcher at the Physics Department of the University of Guanajuato since 2006. His lines of research range from topological M theory to entropic gravity, an alternative theory of gravity where the gravitational field is not seen as a fundamental entity but as an emergent phenomenon. \">\n                View Details\n            <\/button>\n\n        <\/div>\n\n<!-- CONTRIBUTOR 11 -->\n        <!-- Duplica esta tarjeta y sustituye la informaci\u00f3n -->\n\n        <div class=\"speaker-card\">\n\n            <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Nora-Breton.jpg\" class=\"speaker-photo\" alt=\"Contributor Name\">\n\n            <h3>Nora Bret\u00f3n<\/h3>\n\n            <p class=\"institution\">\n                CINVESTAV\n            <\/p>\n\n            <h4 class=\"talk-title\">\n                Ultracompact Anisotropic Stars and Gravastars in General Relativity \n            <\/h4>\n\n            <button class=\"view-details-btn\" type=\"button\" data-name=\"Nora Bret\u00f3n\" data-institution=\"CINVESTAV\" data-talk=\"Ultracompact Anisotropic Stars and Gravastars in General Relativity \" data-photo=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Nora-Breton.jpg\" data-abstract=\"We study static, spherically symmetric ultracompact objects with anisotropic stress. Assuming homogeneous density and a covariant\nanisotropic EOS we construct a mostly analytical model admitting configurations beyond the Buchdahl limit and with compactness arbitrarily close to the black hole value. The solutions exhibit two regimes separated by a critical curve in the parameter space of compactness and anisotropy, associated with the divergence of the central pressure: regular anisotropic configurations with positive central pressure, and singular configurations\nwith negative central pressure for arbitrary anisotropy. In the latter case, a thick shell removes the pressure divergence, yielding regular ultracompact gravastar configurations. \n\" data-bio=\"Dr. Bret\u00f3n\u2019s expertise focuses on gravitational fields, nonlinear electrodynamics and exact solutions to the Einstein equations. Her lines of research explore the phenomenological description of strong electromagnetic fields coupled with gravitational systems as a way to include quantum effects.\">\n                View Details\n            <\/button>\n\n        <\/div>\n\n\n\n\n\n<!-- CONTRIBUTOR 2 -->\n        <!-- Duplica esta tarjeta y sustituye la informaci\u00f3n -->\n\n        <div class=\"speaker-card\">\n\n            <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Francisco-Javier-Turribiates.jpeg\" class=\"speaker-photo\" alt=\"Contributor Name\">\n\n            <h3>Francisco Javier Turribiates Sald\u00edvar<\/h3>\n\n            <p class=\"institution\">\n               Escuela Superior de F\u00edsica y Matem\u00e1ticas del Instituto Polit\u00e9cnico Nacional (ESFM-IPN)\n            <\/p>\n\n            <h4 class=\"talk-title\">\n                TWigner function in quantum cosmology: a phase space description \n            <\/h4>\n\n            <button class=\"view-details-btn\" type=\"button\" data-name=\"Francisco Javier Turribiates Sald\u00edvar\" data-institution=\"Escuela Superior de F\u00edsica y Matem\u00e1ticas del Instituto Polit\u00e9cnico Nacional (ESFM-IPN)\" data-talk=\"Wigner function in quantum cosmology: a phase space description\" data-photo=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Francisco-Javier-Turribiates.jpeg\" data-abstract=\"This talk discusses the use of the Wigner function in quantum cosmology. The application of the Weyl-Wigner-Moyal formalism to cosmological models in minisuperspace is described. In particular, the quantization procedure is applied to the case of flat minisuperspaces. Some examples of cosmological models such as de Sitter and Kantowski-Sachs are analyzed using this approach.\" data-bio=\"He completed his graduate studies at the Physics Department of CINVESTAV under the supervision of professors Jerzy Plebanski and Maciej Przanowski. He subsequently completed a postdoctoral stay with the Mathematical Physics group at the University of Burgundy (France). Since 2007 he has been member of the Physics Department of the Higher School of Physics and Mathematics of the National Polytechnic Institute where he holds the position of full-time tenured professor. His main research areas focus on the quantum description in phase space of mechanical and cosmological models, as well as field theory. He is member of the SNII and has published 56 articles, appearing in both JCRindexed journals and the proceedings of various national and international events and conferences. He has also supervised several undergraduate, master's, and doctoral theses.\">\n                View Details\n            <\/button>\n\n        <\/div>\n\n<!-- CONTRIBUTOR  -->\n        <!-- Duplica esta tarjeta y sustituye la informaci\u00f3n -->\n\n        <div class=\"speaker-card\">\n\n            <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Daniel-Flores.png\" class=\"speaker-photo\" alt=\"Contributor Name\">\n\n            <h3>Daniel Andr\u00e9s Flores Alonso<\/h3>\n\n            <p class=\"institution\">\n               Departamento de Ciencias B\u00e1sicas, \nUniversidad Aut\u00f3noma Metropolitana &#8211; Azcapotzalco\n\n            <\/p>\n\n            <h4 class=\"talk-title\">\n                Connecting superconductors and the G\u00f6del universe  \n            <\/h4>\n\n            <button class=\"view-details-btn\" type=\"button\" data-name=\"Daniel Andr\u00e9s Flores Alonso\" data-institution=\"Departamento de Ciencias B\u00e1sicas, \nUniversidad Aut\u00f3noma Metropolitana - Azcapotzalco\n\" data-talk=\"Connecting superconductors and the G\u00f6del universe \" data-photo=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Daniel-Flores.png\" data-abstract=\"In this talk, we draw connections between the magnetic fields inside superconductors and G\u00f6del's renowned solution to the Einstein field equations. In order to establish this we adapt a theorem on contact topology and hydrodynamics, adjusting it for Lorentzian signature. Our results link systems with translational symmetry by their complementary three-dimensional cross sections taking advantage of underlying geometrical structures.\" data-bio=\"PhD at UNAM, in the ICN in January 2019. Subsequently, I have held postdoctoral positions at UAM Iztapalapa, Cinvestav, Arturo Prat University (in Chile), and UAM Azcapotzalco. My main research focuses on gravitation and applied differential geometry.\">\n                View Details\n            <\/button>\n\n        <\/div>\n\n<!-- CONTRIBUTOR  -->\n        <!-- Duplica esta tarjeta y sustituye la informaci\u00f3n -->\n\n        <div class=\"speaker-card\">\n\n            <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Ricardo-Chavez.jpg\" class=\"speaker-photo\" alt=\"Contributor Name\">\n\n            <h3>Ricardo Ch\u00e1vez Murillo<\/h3>\n\n            <p class=\"institution\">\n               UAM-Iztapalapa\n\n            <\/p>\n\n            <h4 class=\"talk-title\">\n                From the Local Universe to Cosmic Dawn: Charting Cosmic Expansion with H II Galaxies  \n            <\/h4>\n\n            <button class=\"view-details-btn\" type=\"button\" data-name=\"Ricardo Ch\u00e1vez Murillo\" data-institution=\"UAM-Iztapalapa\n\" data-talk=\"From the Local Universe to Cosmic Dawn: Charting Cosmic Expansion with H II Galaxies\" data-photo=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Ricardo-Chavez.jpg\" data-abstract=\"The expansion history of the Universe is now constrained by several powerful cosmological probes, yet independent distance indicators remain essential for testing possible systematic effects and extensions to the standard cosmological model. H II galaxies and giant extragalactic H II regions provide such an alternative through the correlation between their Balmer-line luminosity and ionised-gas velocity dispersion, the \\(L(\\mathrm{H}\\beta)-\\sigma\\) relation.\n\n\nIn this talk, I will present our latest extension of the H II-galaxy Hubble diagram, spanning the remarkable interval from the nearby Universe to \\(z\\sim14\\). By combining local systems with primary distance measurements, ground-based observations, JWST\/NIRSpec spectroscopy, and, at the highest redshifts, complementary ALMA and JWST\/MIRI measurements, we construct a homogenised sample of 243 objects and trace the Hubble flow well beyond the epoch of reionization. \n\n\nA central result is that the \\(L-\\sigma\\) relation shows no significant evidence for evolution across this enormous redshift baseline: systems within tens of Mpc and galaxies observed during cosmic dawn are consistent with the same relation. We use this standardisation to constrain flat and non-flat \\(\\Lambda\\)CDM, \\(w\\)CDM and evolving-dark-energy models, while explicitly accounting for observational systematics and the increasing importance of gravitational lensing at high redshift. \n\n\nFor flat \\(\\Lambda\\)CDM, the joint anchor+H II-galaxy analysis gives \\(h=0.725\\pm0.040\\) and \\(\\Omega_m=0.308^{+0.043}_{-0.053}\\), while extensions allowing a constant or evolving dark-energy equation of state remain consistent with concordance cosmology. These results establish H II galaxies as an independent tracer of cosmic expansion across almost the entire age of the Universe and demonstrate the potential of JWST and ALMA to transform them into a probe of cosmology deep into cosmic dawn.\n\" data-bio=\"More about this speaker soon\">\n                View Details\n            <\/button>\n\n        <\/div>\n\n<!-- CONTRIBUTOR  -->\n        <!-- Duplica esta tarjeta y sustituye la informaci\u00f3n -->\n\n        <div class=\"speaker-card\">\n\n            <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Mariano-Chernicoff.jpeg\" class=\"speaker-photo\" alt=\"Contributor Name\">\n\n            <h3>Mariano Chernicoff<\/h3>\n\n            <p class=\"institution\">\n               Facultad de Ciencias, UNAM\n\n            <\/p>\n\n            <h4 class=\"talk-title\">\n                Logarithmic corrections to the entropy of near-extremal black holes in Einstein-Gauss-Bonnet \n            <\/h4>\n\n            <button class=\"view-details-btn\" type=\"button\" data-name=\"Mariano Chernicoff\" data-institution=\"Facultad de Ciencias, UNAM\n\" data-talk=\"Logarithmic corrections to the entropy of near-extremal black holes in Einstein-Gauss-Bonnet\" data-photo=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/Mariano-Chernicoff.jpeg\" data-abstract=\"We compute the one-loop contribution to the semiclassical partition function of near-extremal, asymptotically AdS black holes in five-dimensional Einstein-Gauss-Bonnet gravity. The analysis is based on the spectrum of a generalized Lichnerowicz operator governing linearized perturbations on the near-horizon geometry of the extremal solution, including its deformation by the Gauss-Bonnet coupling . In the canonical ensemble, the low-temperature behavior of the one-loop partition function leads to logarithmic corrections to the entropy of the form Log(T\/T_0), where the scale T0 depends on both the fluctuation sector and the Gauss-Bonnet coupling.\n\" data-bio=\"More about this speaker soon\">\n                View Details\n            <\/button>\n\n        <\/div>\n\n<!-- CONTRIBUTOR  -->\n        <!-- Duplica esta tarjeta y sustituye la informaci\u00f3n -->\n\n        <div class=\"speaker-card\">\n\n            <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/MarianaVargas.jpg\" class=\"speaker-photo\" alt=\"Contributor Name\">\n\n            <h3>Mariana Vargas Maga\u00f1a<\/h3>\n\n            <p class=\"institution\">\n               Faculty of Sciences, Institute of Physics, UNAM\n\n            <\/p>\n\n            <h4 class=\"talk-title\">\n                The Universe through three years of DESI: What have we learned, and what comes next? \n            <\/h4>\n\n            <button class=\"view-details-btn\" type=\"button\" data-name=\"Mariana Vargas Maga\u00f1a\" data-institution=\"Faculty of Sciences, Institute of Physics, UNAM\" data-talk=\"The Universe through three years of DESI: What have we learned, and what comes next?\" data-photo=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/09\/MarianaVargas.jpg\" data-abstract=\"With three years of data, DESI is providing an increasingly precise view of the late-time Universe. In this talk, I will review what we have learned from DESI so far, from BAO to the latest full-shape results, and discuss the cosmological picture emerging from these measurements. I will then look ahead to the next steps: extracting more information from large-scale structure, going beyond standard two-point analyses, and discussing what we may learn from the next stages of DESI. \n\" data-bio=\"Mariana Vargas Maga\u00f1a is a tenured researcher at the Institute of Physics of the National Autonomous University of Mexico (UNAM). She studied her undergraduate degree in Physics at the Faculty of Sciences of UNAM and pursued her graduate studies in France: a Master\u2019s degree at Universit\u00e9 Paris-Sud and a PhD in Physics at Universit\u00e9 Paris Diderot, conducting her research at the Laboratoire Astroparticule et Cosmologie (APC). She later carried out a postdoctoral stay at the McWilliams Center for Cosmology at Carnegie Mellon University in the United States. Her research focuses on observational cosmology and the study of the large-scale structure of the Universe, with particular interest in baryon acoustic oscillations (BAO), redshift-space distortions, and the development of statistical methods to extract cosmological information from large galaxy surveys. She has participated in major international cosmology collaborations, including BOSS, eBOSS, and DESI. Since 2015, she has been part of the Institute of Physics at UNAM, where she currently holds the position of Tenured Researcher.\n\">\n                View Details\n            <\/button>\n\n        <\/div>\n\n\n\n<!-- CONTRIBUTOR  -->\n        <!-- Duplica esta tarjeta y sustituye la informaci\u00f3n -->\n\n        <div class=\"speaker-card\">\n\n            <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/10\/FlavioPineda.png\" class=\"speaker-photo\" alt=\"Contributor Name\">\n\n            <h3>Flavio Joao Pineda Arvizu<\/h3>\n\n            <p class=\"institution\">\n               Departamento de F\u00edsica Universidad Aut\u00f3noma Metropolitana Iztapalapa (UAM-I) \n\n            <\/p>\n\n            <h4 class=\"talk-title\">\n                Large primordial non-Gaussianities from transient turns in multifield inflation  \n            <\/h4>\n\n            <button class=\"view-details-btn\" type=\"button\" data-name=\"Flavio Joao Pineda Arvizu\" data-institution=\"Departamento de F\u00edsica Universidad Aut\u00f3noma Metropolitana Iztapalapa (UAM-I) \" data-talk=\"Large primordial non-Gaussianities from transient turns in multified inflation\" data-photo=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/10\/FlavioPineda.png\" data-abstract=\"We investigate the generation of primordial non-Gaussianities in multifield inflation, focusing on the effects of transient turning trajectories in the hyperbolic field space manifold. We compute the full bispectrum without relying on slow-roll or local approximations and follow the complete superhorizon evolution of curvature and isocurvature perturbations. We show that transient turns efficiently transfer isocurvature fluctuations into the adiabatic sector, generating sizeable local non-Gaussianities. \n \n\" data-bio=\"Flavio Pineda recently received his Ph.D. in Physics from UAM Iztapalapa. His primary research interests lie at the intersection between high energy physics and cosmology, and include cosmic inflation, gravitational particle production, primordial non-Gaussianities, cosmological collider physics, and quantum field theory. He is also interested in neutron star physics and many-body theory applied to condensed matter physics. \n\">\n                View Details\n            <\/button>\n\n        <\/div>\n\n<!-- CONTRIBUTOR  -->\n        <!-- Duplica esta tarjeta y sustituye la informaci\u00f3n -->\n\n        <div class=\"speaker-card\">\n\n            <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/10\/HugoMorales.png\" class=\"speaker-photo\" alt=\"Contributor Name\">\n\n            <h3>Hugo A. Morales T\u00e9cotl<\/h3>\n\n            <p class=\"institution\">\n               Departamento de F\u00edsica Universidad Aut\u00f3noma Metropolitana Iztapalapa (UAM-I) \n\n            <\/p>\n\n            <h4 class=\"talk-title\">\n                Polymeric propagators via path integrals of particles and gravitational models  \n            <\/h4>\n\n            <button class=\"view-details-btn\" type=\"button\" data-name=\"Hugo A. Morales T\u00e9cotl\" data-institution=\"Departamento de F\u00edsica Universidad Aut\u00f3noma Metropolitana Iztapalapa (UAM-I)\" data-talk=\"Polymeric propagators via path integrals of particles and gravitational models\" data-photo=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/10\/HugoMorales.png\" data-abstract=\"Taking as a motivation the loop quantization of gravity we briefly recall in this talk how this approach can be adapted to the case of a particle in a lattice to get the corresponding propagator. This then is extended to a spatially homogeneous and isotropic cosmological Friedmann-Lemaitre-Robertson Walker (FLRW) as well as a spherically symmetric gravitational model. While in the first two cases an analytical form can be obtained, we will focus on the semiclassical approximation description for the three kinds of systems. Some recent results and problematic findings are touched upon.\" data-bio=\"Hugo Morales was born in Atlixco, Mexico. He got his BSc in Physics from UAM-I and MSc and PhD from the Scuola Internazionale Superiore di Studi Avanzati (SISSA), Trieste, Italy and joined UAM-I Physics Department in 1994. His fields of interest include quantum and classical gravity theory, field theory, black holes and cosmological physics, and relativistic thermodynamics, among others. \n\">\n                View Details\n            <\/button>\n\n        <\/div>\n\n\n<!-- CONTRIBUTOR  -->\n        <!-- Duplica esta tarjeta y sustituye la informaci\u00f3n -->\n\n        <div class=\"speaker-card\">\n\n            <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/10\/LuisaJaime.png\" class=\"speaker-photo\" alt=\"Contributor Name\">\n\n            <h3>Luisa Guadalupe Jaime Gonz\u00e1lez<\/h3>\n\n            <p class=\"institution\">\n               Facultad de Ciencias, UNAM \n\n            <\/p>\n\n            <h4 class=\"talk-title\">\n                Geometric Einsteinian Cosmology and the Evolution of the Universe   \n            <\/h4>\n\n            <button class=\"view-details-btn\" type=\"button\" data-name=\"Luisa Guadalupe Jaime Gonz\u00e1lez\" data-institution=\"Facultad de Ciencias, UNAM\" data-talk=\"Geometric Einsteinian Cosmology and the Evolution of the Universe \" data-photo=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/10\/LuisaJaime.png\" data-abstract=\"We present a cosmological scenario arising from Geometric Einsteinian Cosmology, a modified theory of gravity constructed from an infinite tower of higher-order curvature invariants. The theory belongs to the family of Generalized Quasitopological Gravities and is designed to preserve Einsteinian properties while yielding second-order field equations for a Friedmann\u2013Lema\u00eetre\u2013Robertson\u2013Walker background.\nWe investigate the cosmological dynamics associated with different convergence functions of the infinite series entering the modified Friedmann equations. While an exponential convergence can naturally generate an early accelerated epoch, providing an inflationary scenario with a graceful exit and without the need for an inflaton field, we explore alternative convergence functions that may account for the late-time accelerated expansion of the Universe without introducing a cosmological constant. Our results suggest that different convergence properties of the same underlying gravitational framework can give rise to distinct cosmological regimes, opening the possibility of describing the evolution of the Universe from early-time inflation to late-time acceleration within a purely geometric framework.\n\" data-bio=\"Luisa G. Jaime Gonz\u00e1lez received her Ph.D. from the National Autonomous University of Mexico (UNAM). She has held postdoctoral positions at the Institute for Theoretical Physics of Heidelberg University, the Institute of Nuclear Sciences at UNAM, and the National Institute for Nuclear Research (ININ) in Mexico. She has also taught at the Faculty of Sciences of UNAM and is currently a postdoctoral researcher at the Galician Institute of High Energy Physics (IGFAE) at the University of Santiago de Compostela.\">\n                View Details\n            <\/button>\n\n        <\/div>\n\n\n<!-- CONTRIBUTOR  -->\n        <!-- Duplica esta tarjeta y sustituye la informaci\u00f3n -->\n\n        <div class=\"speaker-card\">\n\n            <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/10\/DanielMartinez.png\" class=\"speaker-photo\" alt=\"Contributor Name\">\n\n            <h3>Daniel Mart\u00ednez Carbajal<\/h3>\n\n            <p class=\"institution\">\n               TESOEM \n\n            <\/p>\n\n            <h4 class=\"talk-title\">\n                Born-Infeld boson stars   \n            <\/h4>\n\n            <button class=\"view-details-btn\" type=\"button\" data-name=\"Daniel Mart\u00ednez Carbajal\" data-institution=\"TESOEM\" data-talk=\"Born-Infeld boson stars\" data-photo=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/10\/DanielMartinez.png\" data-abstract=\"We study the Einstein-Klein-Gordon system minimally coupled to non-linear Born-Infeld electrodynamics for a static, spherically symmetric complex scalar field. The resulting asymptotically flat solutions generalise the classical charged boson stars of Maxwell theory. By analysing the solution space as a function of the Born-Infeld parameter b and the scalar charge q, we show that for a given b, static configurations only exist up to a critical charge qcrit, which increases as b decreases. Furthermore, Born-Infeld boson stars exhibit lower total mass and reduced compactness compared to their Maxwell counterparts across all finite values of b.\" data-bio=\"Dr. Mart\u00ednez Carbajal obtained his Ph.D. in Physics from UAM. He belongs to the National System of Researchers (SNII, Level I) and has conducted a postdoctoral stay at the Institute of Nuclear Sciences at UNAM. Currently, he is a professor and researcher in the Renewable Energy Engineering Division at TESOEM. His research interests encompass mathematical physics, cosmology, gravitation, and science applied to engineering.\">\n                View Details\n            <\/button>\n\n        <\/div>\n\n\n\n\n\n\n\n        <!--\n        AGREGA AQU\u00cd LAS DEM\u00c1S TARJETAS DE CONTRIBUTORS.\n\n        Todas deben permanecer antes del siguiente cierre:\n        <\/div>\n        <\/section>\n        -->\n\n    <\/div> <!-- cierra .speaker-grid -->\n\n<\/section> <!-- cierra .contributions-section -->\n\n\n<!-- ===================================================== -->\n<!-- MODAL -->\n<!-- Se coloca una sola vez, despu\u00e9s de todas las tarjetas -->\n<!-- ===================================================== -->\n\n<div class=\"speaker-modal-overlay\" id=\"speakerModalOverlay\" aria-hidden=\"true\">\n    <div class=\"speaker-modal\" role=\"dialog\" aria-modal=\"true\" aria-labelledby=\"modalSpeakerName\">\n\n        <button class=\"speaker-modal-close\" id=\"speakerModalClose\" 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class=\"ecr-card\">\n\n                <div class=\"ecr-photo-wrapper\">\n                    <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/04\/People.png\" alt=\"Jos\u00e9 Guadalupe Santiago Garc\u00eda\" class=\"ecr-photo\">\n                <\/div>\n\n                <div class=\"ecr-info\">\n\n                    <h3>\n                        Francisco Campos Oliden\n                    <\/h3>\n\n                    <p class=\"ecr-institution\">\n                        Universidad Aut\u00f3noma Metropolitana\n                    <\/p>\n\n                    <h4 class=\"ecr-talk-title\">\n                        Enfoques para estudiar Gravitaci\u00f3n Cu\u00e1ntica\n                    <\/h4>\n\n                    <p class=\"ecr-abstract\">\n                        La dificultad para formular una teor\u00eda de gravitaci\u00f3n cu\u00e1ntica en un espacio-tiempo de cuatro dimensiones lleva a considerar alternativas como estudiar teor\u00edas de menor dimensi\u00f3n que puedan dar luz al caso de cuatro. Se presentan dos teor\u00edas de norma en un espacio-tiempo de dos dimensiones: Yang-Mills y BF, ambas con grupo de norma SU(2). Abordamos el estudio de estas \u00faltimas desde tres enfoques de cuantizaci\u00f3n: Hamiltoniano, espumas de esp\u00edn y teor\u00eda de campos en grupos. Esta \u00faltima captura diferentes topolog\u00edas del espacio-tiempo de manera sistem\u00e1tica, una de sus caracter\u00edsticas de mayor inter\u00e9s.\n                    <\/p>\n\n                <\/div>\n\n            <\/article>\n\n\n            <!-- =================================================\n                 RESEARCHER 2\n                 ================================================= -->\n\n            <article class=\"ecr-card\">\n\n                <div class=\"ecr-photo-wrapper\">\n                    <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/04\/People.png\" alt=\"Jaime Alejandro Franco Medrano\" class=\"ecr-photo\">\n                <\/div>\n\n                <div class=\"ecr-info\">\n\n                    <h3>\n                        Gustavo Alejandro S\u00e1nchez Herrera\n                    <\/h3>\n\n                    <p class=\"ecr-institution\">\n                        Universidad Aut\u00f3noma Metropolitana, Unidad Iztapalapa (UAM-I)\n                    <\/p>\n\n                    <h4 class=\"ecr-talk-title\">\n                        Quantum corrections to cosmic perturbations for a bouncing background\n                    <\/h4>\n\n                    <p class=\"ecr-abstract\">\n                        This talk presents an effective analysis of scalar cosmological perturbations on a nonsingular FLRW background. The approach adopted allows quantum dispersions and correlations to be systematically incorporated as new degrees of freedom that modify the classical dynamics of the system.\nIn particular, we study an FLRW model with holonomy corrections that gives rise to a cosmological bounce, coupled to the scalar perturbation sector through an effective Hamiltonian. We show that the quantum backreaction between the background and the perturbations significantly modifies the evolution of the power spectrum, both in a regime close to the bounce and in a de Sitter-like regime.\nA central result is that quantum corrections enhance the power spectrum and suppress the ultraviolet divergences of the classical model at high frequencies.\n                    <\/p>\n\n                <\/div>\n\n            <\/article>\n\n\n            <!-- =================================================\n                 RESEARCHER 3\n                 ================================================= -->\n\n            <article class=\"ecr-card\">\n\n                <div class=\"ecr-photo-wrapper\">\n                    <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/04\/People.png\" alt=\"Marco Antonio Zurita Mart\u00ednez\" class=\"ecr-photo\">\n                <\/div>\n\n                <div class=\"ecr-info\">\n\n                    <h3>\n                        Jorge Luis Haro Santiago\n                    <\/h3>\n\n                    <p class=\"ecr-institution\">\n                        Universidad Aut\u00f3noma Metropolitana Unidad Iztapalapa\n                    <\/p>\n\n                    <h4 class=\"ecr-talk-title\">\n                        Slow Rotation in Einstein\u2013ModMax Theory: A Consistency Analysis\n                    <\/h4>\n\n                    <p class=\"ecr-abstract\">\n\n                        We examine the consistency of slowly rotating, electrically charged configurations in Einstein\u2013ModMax theory. We first assess an exploratory construction based on a prescribed Pleba\u0144ski excitation tensor and characterize the horizon geometry of the candidate metric. A preliminary first-law test motivates re-examining its electromagnetic source. For the constitutive reconstruction considered, the electromagnetic field strength exhibits a nonvanishing closure residual at second order in rotation, showing that the prescribed configuration fails to satisfy the full Einstein\u2013ModMax system. We therefore revisit the first-order problem, constructing the field strength from a vector potential and retaining independent radial functions for frame dragging and the induced magnetic potential. Building on the established slow-rotation framework for nonlinear electrodynamics, we specialize the coupled field equations to ModMax. A first integral of the Einstein equation reduces the system to an inhomogeneous second-order radial equation, retaining the full dependence on the ModMax parameter \u03b3. We conclude with consistency checks in the Maxwell limit and a discussion of work in progress.\n\n                    <\/p>\n\n                <\/div>\n\n            <\/article>\n\n\n            <!-- =================================================\n                 RESEARCHER 4\n                 ================================================= -->\n\n            <article class=\"ecr-card\">\n\n                <div class=\"ecr-photo-wrapper\">\n                    <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/04\/People.png\" alt=\"Ernesto Ben\u00edtez Rodr\u00edguez\" class=\"ecr-photo\">\n                <\/div>\n\n                <div class=\"ecr-info\">\n\n                    <h3>\n                        Elda Guzm\u00e1n Herrera\n                    <\/h3>\n\n                    <p class=\"ecr-institution\">\n                        Universidad Federal de Itajub\u00e1\n                    <\/p>\n\n                    <h4 class=\"ecr-talk-title\">\n                        Multirefringence in nonlinear electodynamics and in anisotropic media\n                    <\/h4>\n\n                    <p class=\"ecr-abstract\">\n                        We explore the foundations of multirefringent space-times and establish how non-linearities can be mapped on the tensors of parameters constitutive of material media.\nThe nonlinearities to discuss come from two frameworks, nonlinear electrodynamics and nonlinear dielectric properties.\nNon-linear electrodynamic theories predict that the vacuum behaves like a highly nonlinear optical medium and, as a consequence, it is possible that the multirefringence phenomenon exists in this medium.\nOn the other hand, while multirefringence takes place naturally for anisotropic materials, we can induce artificial multirefringence when considering that the medium has nonlinear dielectric properties.\n                    <\/p>\n\n                <\/div>\n\n            <\/article>\n\n\n            <!-- =================================================\n                 RESEARCHER 5\n                 ================================================= -->\n\n            <article class=\"ecr-card\">\n\n                <div class=\"ecr-photo-wrapper\">\n                    <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/04\/People.png\" alt=\"Luis Gerardo Gonz\u00e1lez P\u00e9rez\" class=\"ecr-photo\">\n                <\/div>\n\n                <div class=\"ecr-info\">\n\n                    <h3>\n                        Fernando Aar\u00f3n Castillo Aguilar\n                    <\/h3>\n\n                    <p class=\"ecr-institution\">\n                       Universidad Aut\u00f3noma Metropolitana (UAM)\n                    <\/p>\n\n                    <h4 class=\"ecr-talk-title\">\n                        \\(L_\\infty\\)-Algebras of Classical Field Theories\n                    <\/h4>\n\n                    <p class=\"ecr-abstract\">\n                        The equations of motion, gauge symmetries, and Noether identities of a classical field theory can be encoded in a single \\(L_\\infty\\)-algebra. I present this construction using general relativity as the main example, and discuss its relation to the Batalin\u2013Vilkovisky formalism and its braided deformation, leading to a noncommutative formulation of gravity.\n                    <\/p>\n\n                <\/div>\n\n            <\/article>\n\n\n        <\/div>\n\n    <\/div>\n\n<\/section>\n\n\n<style>\n\n\/* =========================================================\n   LGCMM 2026\n   EARLY-CAREER RESEARCHERS\n   ========================================================= *\/\n\n\n\/* =========================================================\n   SECTION\n   ========================================================= *\/\n\n.ecr-section {\n\n    background:#F6F4EE;\n\n    color:#550527;\n\n    padding:90px 30px;\n\n    overflow:hidden;\n\n}\n\n\n\/* =========================================================\n   CONTAINER\n   ========================================================= *\/\n\n.ecr-container {\n\n    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<div class=\"lgm-pdf-content\">\n\n        <h2>Program<\/h2>\n\n        <div class=\"lgm-pdf-line\"><\/div>\n\n        <p class=\"lgm-pdf-intro\">\n            View the conference program below or download the complete PDF.\n        <\/p>\n\n\n        <!-- =========================================================\n             PROGRAM PDF PREVIEW\n             ========================================================= -->\n\n        <div class=\"lgm-pdf-preview\">\n\n            <iframe src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/10\/Programa_IX_Garcia-Colin_2026_Gravitation_and_Cosmology.pdf\" title=\"LGCMM 2026 Program\" loading=\"lazy\">\n            <\/iframe>\n\n        <\/div>\n\n\n        <!-- =========================================================\n             DOWNLOAD BUTTONS\n             ========================================================= -->\n\n        <div class=\"lgm-pdf-buttons\">\n\n            <!-- PROGRAM -->\n\n            <a class=\"lgm-pdf-button\" href=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/10\/Programa_IX_Garcia-Colin_2026_Gravitation_and_Cosmology.pdf\" target=\"_blank\" download=\"\">\n                \n                <span class=\"lgm-pdf-icon\">\u2193<\/span>\n                Download Program\n            <\/a>\n\n\n            <!-- SCHEDULE -->\n\n            <a class=\"lgm-pdf-button\" href=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/10\/Schedule-GC.pdf\" target=\"_blank\" download=\"\">\n                \n                <span class=\"lgm-pdf-icon\">\u2193<\/span>\n                Download Schedule\n            <\/a>\n\n        <\/div>\n\n    <\/div>\n\n<\/section>\n\n\n<style>\n\n\/* =========================================================\n   LGCMM 2026 \u2014 PDF SECTION\n   ========================================================= *\/\n\n.lgm-pdf-section {\n\n    padding: 80px 25px;\n\n    background: #F6F4EE;\n\n    color: #550527;\n\n    font-family: \"Times 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}\n\n}\n\n<\/style>\n\n\n\n<section class=\"lgm-organizers\">\n\n    <div class=\"lgm-organizers-container\">\n\n        <!-- ENCABEZADO -->\n\n        <div class=\"lgm-organizers-header\">\n\n            <span>Gravitation and Cosmology<\/span>\n\n            <h2>Organizing Committee<\/h2>\n\n            <div class=\"lgm-organizers-line\"><\/div>\n\n        <\/div>\n\n\n        <!-- ORGANIZADORES -->\n\n        <div class=\"lgm-organizers-list\">\n\n\n            <!-- ORGANIZADOR I -->\n\n            <div class=\"lgm-organizer\">\n\n                <!-- CAMBIO: Se agreg\u00f3 la etiqueta img para la foto del organizador con una URL dummy -->\n                <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/10\/Marco-Maceda.jpg\" alt=\"Roberto Olayo Valles\" class=\"lgm-organizer-photo\">\n\n                <h3>\n                    Marco A. Maceda Santamar\u00eda\n                <\/h3>\n<h4>\n                    UAM-I \n                 <\/h4>\n\n            <\/div>\n\n\n            <!-- ORGANIZADOR II -->\n\n            <div class=\"lgm-organizer\">\n\n                <!-- CAMBIO: Se agreg\u00f3 la etiqueta img para la foto del organizador con una URL dummy -->\n                <img decoding=\"async\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/10\/Blanca-Angelica-Gonzalez-Morales.jpg\" alt=\"Axay\u00e1catl Morales\" class=\"lgm-organizer-photo\">\n\n                <h3>\n                    Blanca Ang\u00e9lica Gonz\u00e1lez Morales\n                <\/h3>\n<h4>\n                    UAM-I \n                 <\/h4>\n            <\/div>\n\n\n        <\/div>\n\n    <\/div>\n\n<\/section>\n\n\n<style>\n\n\/* ================================= *\/\n\/* CONTENEDOR GENERAL *\/\n\/* ================================= *\/\n\n.lgm-organizers{\n\n    width:100%;\n\n    padding:60px 25px;\n\n    background:#550527;\n\n    font-family:\n        \"Times New Roman\",\n        Times,\n        serif;\n\n    color:#F6F4EE;\n\n    overflow:hidden;\n\n}\n\n\n\/* ================================= *\/\n\/* CONTENEDOR *\/\n\/* ================================= *\/\n\n.lgm-organizers-container{\n\n    max-width:950px;\n\n    margin:0 auto;\n\n}\n\n\n\/* ================================= *\/\n\/* ENCABEZADO *\/\n\/* ================================= *\/\n\n.lgm-organizers-header{\n\n    text-align:center;\n\n    margin-bottom:35px;\n\n    opacity:0;\n\n    transform:translateY(20px);\n\n    animation:\n        lgmOrgFade .8s ease forwards;\n\n}\n\n\n.lgm-organizers-header span{\n\n    display:block;\n\n    color:#D78521;\n\n    font-size:.75rem;\n\n    letter-spacing:.25em;\n\n    margin-bottom:8px;\n\n}\n\n\n.lgm-organizers-header h2{\n\n    margin:0;\n\n    color:#F6F4EE;\n\n    font-size:2.4rem;\n\n    font-weight:500;\n\n}\n\n\n.lgm-organizers-line{\n\n    width:55px;\n\n    height:2px;\n\n    background:#D78521;\n\n    margin:15px auto 0;\n\n}\n\n\n\/* ================================= *\/\n\/* LISTA *\/\n\/* ================================= *\/\n\n.lgm-organizers-list{\n\n    display:flex;\n\n    justify-content:center;\n\n    align-items:stretch;\n\n    gap:22px;\n\n}\n\n\n\/* ================================= *\/\n\/* ORGANIZADOR *\/\n\/* ================================= *\/\n\n.lgm-organizer{\n\n    width:280px;\n\n    \/* CAMBIO: Se aument\u00f3 el min-height de 120px a 240px para acomodar la altura de las fotos *\/\n    min-height:240px; \n\n    padding:20px 18px;\n\n    display:flex;\n\n    flex-direction:column;\n\n    align-items:center;\n\n    justify-content:center;\n\n    background:\n        rgba(246,244,238,.60);\n\n    border-top:\n        2px solid\n        #D78521;\n\n    text-align:center;\n\n    opacity:0;\n\n    transform:\n        translateY(20px);\n\n    animation:\n        lgmOrgItem .7s\n        cubic-bezier(.22,1,.36,1)\n        forwards;\n\n    transition:\n        transform .35s ease,\n        background .35s ease,\n        box-shadow .35s ease;\n\n}\n\n\n\/* ================================= *\/\n\/* ANIMACI\u00d3N ESCALONADA *\/\n\/* ================================= *\/\n\n.lgm-organizer:nth-child(1){\n\n    animation-delay:.15s;\n\n}\n\n\n.lgm-organizer:nth-child(2){\n\n    animation-delay:.30s;\n\n}\n\n\n\/* ================================= *\/\n\/* N\u00daMERO ROMANO *\/\n\/* ================================= *\/\n\n.lgm-organizer-number{\n\n    width:34px;\n\n    height:34px;\n\n    display:flex;\n\n    align-items:center;\n\n    justify-content:center;\n\n    margin-bottom:13px;\n\n    border:\n        1px solid\n        #D78521;\n\n    border-radius:50%;\n\n    background:\n        rgba(246,244,238,.15);\n\n    color:#D78521;\n\n    font-size:.85rem;\n\n    line-height:1;\n\n    transition:\n        background .35s ease,\n        color .35s ease,\n        transform .35s ease;\n\n}\n\n\/* CAMBIO: Se a\u00f1adieron los estilos para la foto del organizador *\/\n\/* ================================= *\/\n\/* FOTO *\/\n\/* ================================= *\/\n\n.lgm-organizer-photo {\n\n    width: 90px;\n    \n    height: 90px;\n    \n    border-radius: 50%;\n    \n    object-fit: cover;\n    \n    margin-bottom: 15px;\n    \n    border: 3px solid #69725E;\n    \n    transition: transform .35s ease;\n\n}\n\n\n\/* ================================= *\/\n\/* NOMBRE *\/\n\/* ================================= *\/\n\n.lgm-organizer h3{\n\n    margin:0;\n\n    color:#550527;\n\n    font-family:\n        \"Times New Roman\",\n        Times,\n        serif;\n\n    font-size:1.08rem;\n\n    font-weight:400;\n\n    line-height:1.4;\n\n}\n\n\n\/* ================================= *\/\n\/* HOVER *\/\n\/* ================================= *\/\n\n.lgm-organizer:hover{\n\n    transform:\n        translateY(-6px);\n\n    background:\n        rgba(246,244,238,.78);\n\n    box-shadow:\n        0 10px 25px\n        rgba(0,0,0,.18);\n\n}\n\n\n.lgm-organizer:hover\n.lgm-organizer-number{\n\n    background:#550527;\n\n    color:#F6F4EE;\n\n    transform:\n        rotate(8deg)\n        scale(1.08);\n\n}\n\n\/* CAMBIO: Peque\u00f1o efecto de escala para la foto al pasar el mouse por encima de la tarjeta *\/\n.lgm-organizer:hover \n.lgm-organizer-photo {\n\n    transform: scale(1.05);\n\n}\n\n\n\/* ================================= *\/\n\/* ANIMACIONES *\/\n\/* ================================= *\/\n\n@keyframes lgmOrgFade{\n\n    from{\n\n        opacity:0;\n\n        transform:\n            translateY(20px);\n\n    }\n\n    to{\n\n        opacity:1;\n\n        transform:\n            translateY(0);\n\n    }\n\n}\n\n\n@keyframes lgmOrgItem{\n\n    from{\n\n        opacity:0;\n\n        transform:\n            translateY(20px);\n\n    }\n\n    to{\n\n        opacity:1;\n\n        transform:\n            translateY(0);\n\n    }\n\n}\n\n\n\/* ================================= *\/\n\/* M\u00d3VIL *\/\n\/* ================================= *\/\n\n@media(max-width:650px){\n\n    .lgm-organizers{\n\n        padding:\n            50px 20px;\n\n    }\n\n    .lgm-organizers-header h2{\n\n        font-size:2.1rem;\n\n    }\n\n    .lgm-organizers-list{\n\n        flex-direction:column;\n\n        align-items:center;\n\n        gap:15px;\n\n    }\n\n    .lgm-organizer{\n\n        width:100%;\n\n        max-width:350px;\n\n        \/* CAMBIO: Se aument\u00f3 el min-height en m\u00f3vil de 105px a 200px para dar espacio a la foto *\/\n        min-height:200px;\n\n    }\n\n}\n\n<\/style>\n\n\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized wp-duotone-unset-1\"><img fetchpriority=\"high\" decoding=\"async\" width=\"2560\" height=\"780\" src=\"https:\/\/lgcmm.izt.uam.mx\/wp-content\/uploads\/2026\/10\/logosv1-scaled.jpeg\" alt=\"\" class=\"wp-image-796\" 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background:rgba(85,5,39,1);\n\n    padding:50px 20px 50px;\n\n    color:white;\n\n}\n\n\n.wine-footer-container{\n\n    max-width:1200px;\n\n    margin:auto;\n\n    text-align:center;\n\n}\n\n\n\/* L\u00ednea divisoria *\/\n\n.footer-divider{\n\n    height:1px;\n\n    width:70%;\n\n    background:rgba(230,228,205,.35);\n\n    margin:0 auto 35px;\n\n}\n\n\n\/* Texto *\/\n\n.wine-footer p{\n\n    color:#E6E4CD;\n\n    letter-spacing:.25em;\n\n    font-size:.9rem;\n\n    text-transform:uppercase;\n\n    margin:0;\n\n}\n\n\n\n@media(max-width:700px){\n\n    .footer-divider{\n\n        width:85%;\n\n    }\n\n\n    .wine-footer p{\n\n        font-size:.75rem;\n\n    }\n\n}\n\n<\/style>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>symposium on Gravitation and Cosmology Superplenary The use of gravitational (quantum) metrological triangles University of Bremen Dr. Claus L\u00e4mmerzahl More 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