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X-WR-CALDESC:Events for Instituto de Física Teórica
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TZID:Europe/Madrid
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DTSTART:20250330T010000
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DTSTART:20251026T010000
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DTSTART:20260329T010000
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BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260525T150000
DTEND;TZID=Europe/Madrid:20260525T160000
DTSTAMP:20260718T190346
CREATED:20260520T084237Z
LAST-MODIFIED:20260525T122737Z
UID:25075-1779721200-1779724800@www.ift.uam-csic.es
SUMMARY:Seminar: 'Weak Particles with a strong impact'
DESCRIPTION:Title: ‘Weak Particles with a strong impact’ \nSpeaker: Aritra Gupta (Krea University\, India) \nVenue&Time: Red Room / 15:00 \nAbstract: Dark matter and neutrinos are among the most elusive particles in nature\, yet they play a central role in the evolution of the Universe. Their extremely weak interactions make them difficult to detect\, but also allow them to probe environments inaccessible to ordinary matter. \nIn this colloquium\, I will discuss how astrophysical systems and neutrino observatories can be used to explore the physics of dark matter and neutrinos beyond the Standard Model. I will present scenarios where dark matter and neutrino physics are intimately connected\, leading to observable consequences in cosmology and astroparticle experiments. I will also discuss how dark matter accumulated inside compact stellar environments can significantly modify supernova cooling along with other detectable indirect signatures. Throughout the talk\, I will highlight how compact stars\, neutrino detectors\, and astrophysical observations together provide new windows into the dark sector.
URL:https://www.ift.uam-csic.es/event/seminar-weak-particles-with-a-strong-impact/
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260521T150000
DTEND;TZID=Europe/Madrid:20260521T160000
DTSTAMP:20260718T190346
CREATED:20260206T110232Z
LAST-MODIFIED:20260518T073544Z
UID:24351-1779375600-1779379200@www.ift.uam-csic.es
SUMMARY:Seminar: 'Exploring Effective Theories of Gauged Chiral Symmetries at the LHC and Beyond'
DESCRIPTION:Title: Exploring Effective Theories of Gauged Chiral Symmetries at the LHC and Beyond \nSpeaker: Felix Yu (Mainz U.) \nVenue & Time: Red Room / 15:00 \nAbstract: I discuss theoretical issues with constructing effective theories of gauged chiral symmetries\, taking a quark-universal U(1)_B symmetry as an example.  I will review the phenomenology of the Z-Z’-photon vertex and point out novelties regarding a non-renormalization theorem and connections to electroweak loop calculations and dimensional regularization. I also present the collider signatures from the exotic scalar sector and the characteristic nature of non-decoupling chiral matter.
URL:https://www.ift.uam-csic.es/event/seminar-by-felix-yu-mainz-u/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260518T150000
DTEND;TZID=Europe/Madrid:20260518T160000
DTSTAMP:20260718T190346
CREATED:20251128T155105Z
LAST-MODIFIED:20260504T100633Z
UID:23975-1779116400-1779120000@www.ift.uam-csic.es
SUMMARY:Seminar: 'On the evidence for elastic interactions in the dark sector'
DESCRIPTION:Title: ‘On the evidence for elastic interactions in the dark sector’ \nSpeaker: Jose Beltrán Jiménez\, University of Salamanca. \nVenue & Time: Red Room / 15:00 \nAbstract: The increasing quality of cosmological data has revealed > some tensions among different probes that could be signalling the necessity of incorporating new physics into our cosmological model. One particularly intriguing possibility is the existence of elastic interactions between dark matter and dark energy. Not only do these interactions provide a natural mechanism to relief cosmological tensions\, but there is also compelling observational evidence for them\, to the extent that a detection could even be claimed. I wil review the potential of these scenarios in relation to the cosmological tensions and discuss distinctive signatures that can be probed with future data\, thus providing a smoking gun for these interactions.
URL:https://www.ift.uam-csic.es/event/seminar-by-jose-beltran-salamanca/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260514T120000
DTEND;TZID=Europe/Madrid:20260514T130000
DTSTAMP:20260718T190346
CREATED:20260330T090749Z
LAST-MODIFIED:20260513T152425Z
UID:24670-1778760000-1778763600@www.ift.uam-csic.es
SUMMARY:Seminar: 'Perturbative aspect of electroweak phase transitions in the Early Universe'
DESCRIPTION:Title: ‘Perturbative aspect of electroweak phase transitions in the Early Universe’\n\n\n\nSpeaker: Andrii Dashko (DESY)\n\n\nVenue&Time: Blue Room / 12:00\n\n\nAbstract: We present a study of the perturbative description of thermally driven electroweak phase transitions (EWPT) in the early universe. Focusing on strong first-order transitions\, which are relevant for gravitational wave cosmology\, we examine the dimensional reduction as a tool for a precise and systematic description focusing on the running of effective parameters within the effective field theory (EFT)\, and the impact of higher-dimensional operators. This allows us to assess the range of validity and theoretical uncertainties of the EFT approach. We demonstrate these results with applications to the Standard Model Effective Field Theory (SMEFT) and singlet extensions of the Standard Model\, both of which can realize strong EWPT.
URL:https://www.ift.uam-csic.es/event/seminar-by-andrii-dashko-desy/
LOCATION:Blue Room\, Instituto de Física Teórica (IFT) - C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260511T150000
DTEND;TZID=Europe/Madrid:20260511T160000
DTSTAMP:20260718T190346
CREATED:20260310T094850Z
LAST-MODIFIED:20260511T080840Z
UID:24578-1778511600-1778515200@www.ift.uam-csic.es
SUMMARY:Seminar: 'Primordial Black Holes -- Positivist Perspective\, Quantum Quiddity and Galaxy Genesis'
DESCRIPTION:Title: ‘Primordial Black Holes — Positivist Perspective\, Quantum Quiddity and Galaxy Genesis’ \nSpeaker: Florian Kühnel\, (TU Dortmund & LMU Munich) \nVenue&Time: Red Room / 15:00 \nAbstract: Primordial black holes are black holes that may have formed in the early Universe. Their masses potentially span a range from as low as the Planck mass up to many orders of magnitude above the solar mass. This\, in particular\, includes those black holes recently discovered through gravitational waves\, and (part of) these may conceivably be of primordial origin. After a general introduction on primordial black holes\, I review the observational hints for their existence — from a variety of lensing\, dynamical\, accretion and gravitational-wave effects. As I will show\, all of these (over 20) may be explained by a single and simple unified model\, naturally shaped by the thermal history of the Universe. If time permits\, I discuss how recent advances in our understanding of quantum effects in black holes impact PBHs. This prominently concerns deviations from Hawking radiation in the form of the memory-burden effect. Finally\, I will elucidate on the role primordial black holes have on early galaxy and star formation.
URL:https://www.ift.uam-csic.es/event/seminar-title-tba-florian-kuhnel-tu-dortmund-lmu-munich/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260507T150000
DTEND;TZID=Europe/Madrid:20260507T160000
DTSTAMP:20260718T190346
CREATED:20260420T102805Z
LAST-MODIFIED:20260420T102828Z
UID:24930-1778166000-1778169600@www.ift.uam-csic.es
SUMMARY:Seminar by Christian Northe (Institute of Physics\, Prague)
DESCRIPTION:Title: Entanglement through topological interfaces in CFT revisited \nSpeaker: Christian Northe (Institute of Physics\, Prague) \nVenue&Time: Red Room / 15:00 \nAbstract: Present theoretical predictions for the entanglement entropy through topological defects are violated in numerical simulations of critical systems. In this talk\, I discuss a paradigm shift in the preparation of reduced density matrices in the presence of topological defects\, and emphasize the role of defect networks with which they can be dressed. Grouplike and duality defects are considered in detail for the Ising model\, establishing agreement with all numerically found entanglement entropies. Since this new construction functions at the level of reduced density matrices\, it accounts for topological defects beyond the entanglement entropy to other entanglement measures. The framework employs boundary conformal field theory techniques to implement the factorization of Hilbert space\, which I recapitulate at the beginning of the talk and discuss its relation with the entanglement spectrum.
URL:https://www.ift.uam-csic.es/event/seminar-by-christian-northe-institute-of-physics-prague/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260506T110000
DTEND;TZID=Europe/Madrid:20260506T120000
DTSTAMP:20260718T190346
CREATED:20260429T082932Z
LAST-MODIFIED:20260429T083036Z
UID:24957-1778065200-1778068800@www.ift.uam-csic.es
SUMMARY:Seminar: 'Are string vacua connected?' by Ashoke Sen (ICTS-Infosys)
DESCRIPTION:Title: ‘Are string vacua connected?’\n\nSpeaker: Ashoke Sen (ICTS-Infosys)\n\nVenue&Time: 11:00 / Blue Room\n\nAbstract: String theory has many vacua. We shall examine the question of whether these vacua are connected from an experimentalist’s perspective.\n\nAshoke Sen is the ICTS-Infosys Madhava Chair Professor at the International Centre for Theoretical Sciences\, Bengaluru.\nHis major honours include the ICTP Dirac Medal (2014)\, Breakthrough Prize in Fundamental Physics (2012)\, and the Infosys Prize in Mathematical Sciences (2009). He has also received the Padma Bhushan (2013) and the Padma Shri (2001)\, and is a Fellow of the Royal Society.
URL:https://www.ift.uam-csic.es/event/seminar-are-string-vacua-connected-by-ashoke-sen-icts-infosys/
LOCATION:Blue Room\, Instituto de Física Teórica (IFT) - C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260504T150000
DTEND;TZID=Europe/Madrid:20260504T160000
DTSTAMP:20260718T190346
CREATED:20260129T125910Z
LAST-MODIFIED:20260504T081933Z
UID:24312-1777906800-1777910400@www.ift.uam-csic.es
SUMMARY:Seminar: 'Gravitational waves from phase transitions in the early Universe: sound waves and MHD turbulence'
DESCRIPTION:Title: Gravitational waves from phase transitions in the early Universe: sound waves and MHD turbulence \nSpeaker: Alberto Roper Pol (Geneva) \nVenue&Time: Red Room / 15:00 \nAbstract:  Gravitational waves (GWs) can be produced by a first-order phase transition in the early Universe via the fluid perturbations induced in the primordial plasma by the expansion and collision of broken-phase bubbles. I will review the production of GWs by the anisotropic stresses of velocity and magnetic fields induced in a first-order phase transition and present recent developments on the analytical estimates and numerical simulations that address the stochastic GW background produced by acoustic motion (sound waves) and magnetohydrodynamic (MHD) turbulence. These GWs could be detectable by current and future GW detectors like LISA or PTA\, potentially providing us with direct clean information of the physics at the high energies of the early Universe and probing beyond the Standard Model physics. In addition\, the presence of magnetic fields at a phase transition leads to coupled non-linear fluid perturbations\, described by MHD turbulence\, that will impact the cosmological GW background. The study of these effects can be used to put constraints on primordial magnetic fields. These fields would evolve until present time and leave observable imprints in\, for example\, the CMB and in the cosmic voids of the large-scale structure of the Universe\, allowing us to combine GW observations with other cosmological and astrophysical observations in a multi-messenger approach.
URL:https://www.ift.uam-csic.es/event/ift-seminar-alberto-roper-pol-geneva/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260430T150000
DTEND;TZID=Europe/Madrid:20260430T160000
DTSTAMP:20260718T190346
CREATED:20260310T094240Z
LAST-MODIFIED:20260427T064858Z
UID:24572-1777561200-1777564800@www.ift.uam-csic.es
SUMMARY:Seminar: 'Quantum computing for lattice gauge theories: from the Schwinger model to an SO(3) Quantum Link model'
DESCRIPTION:Title: Quantum computing for lattice gauge theories: from the Schwinger model to an SO(3) Quantum Link model \nSpeaker: Bipasha Chakraborty (University of Southampton) \nVenue&Time: Red Room / 15:00 \nAbstract: Quantum computing provides a promising framework for simulating strongly coupled gauge theories relevant to high-energy physics. In this talk\, I will discuss quantum simulations of lattice gauge theories\, focusing on the Schwinger model as a benchmark Abelian system and on a non-Abelian SO(3) gauge theory formulated as a quantum link model. I will outline gauge-invariant encodings and circuit implementations suitable for near-term devices\, and comment on prospects for using quantum algorithms to study real-time dynamics and other regimes challenging for classical methods.
URL:https://www.ift.uam-csic.es/event/seminar-bipasha-chakraborty/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260427T150000
DTEND;TZID=Europe/Madrid:20260427T160000
DTSTAMP:20260718T190346
CREATED:20260129T125809Z
LAST-MODIFIED:20260423T153319Z
UID:24310-1777302000-1777305600@www.ift.uam-csic.es
SUMMARY:Seminar: 'Collective vortex dynamics in strongly coupled superfluids'
DESCRIPTION:Title: Collective vortex dynamics in strongly coupled superfluids \nSpeaker: Mikel Sanchez-Garitaonandia (University College Dublin) \nVenue&Time: Red Room / 15:00 \n\nAbstract: Vorticity appears across a wide range of fluid phenomena\, from the dynamics of classical fluids to quantum vortices in superfluids. In the latter case\, vortices are topological defects that interact both with each other and with the surrounding medium. When a large number of vortices are present\, it is natural to ask whether their collective behaviour can itself be described as a fluid\, captured by an effective theory of vortex hydrodynamics. In this talk\, I will explore the dynamics of many vortices in a strongly coupled superfluid with holography. By performing real-time simulations\, I will investigate how the system approaches equilibrium and how its macroscopic behaviour compares with the predictions of vortex hydrodynamics. This allows to assess the range of validity of the hydrodynamic description and to understand how the system behaves beyond it.
URL:https://www.ift.uam-csic.es/event/ift-seminar-mikel-sanchez-garitaonandia/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260423T150000
DTEND;TZID=Europe/Madrid:20260423T160000
DTSTAMP:20260718T190346
CREATED:20260321T095735Z
LAST-MODIFIED:20260420T102552Z
UID:24651-1776956400-1776960000@www.ift.uam-csic.es
SUMMARY:Seminar by Maria Olalla Olea Romacho (King's College\, London)
DESCRIPTION:Title: ‘Traces from Primordial Magnetogenesis’ \n  \nSpeaker: Maria Olalla Olea Romacho (King’s College\, London) \n  \nVenue&Time: Red Room / 15:00 \n\nAbstract: Magnetic fields permeate the Universe across a wide range of scales\, from galaxies and clusters to the most underdense regions of the cosmic web. Gamma-ray observations of TeV blazars suggest the presence of magnetic fields in intergalactic voids\, where no efficient late-time astrophysical sources exist\, pointing toward a possible primordial origin and a direct link to early-Universe physics. Primordial magnetic fields arise naturally in scenarios such as inflation or cosmological phase transitions. In this seminar\, I present a multi-messenger perspective on their observational signatures. On the particle physics side\, I discuss collider-motivated models of electroweak phase transitions\, highlighting connections to blazar observations and stochastic gravitational-wave backgrounds. On the astrophysical side\, I show how primordial magnetic fields enhance small-scale structure formation\, leading to dense dark matter minihalos that boost indirect detection signals\, and how they impact high-redshift observables probed by the James Webb Space Telescope.
URL:https://www.ift.uam-csic.es/event/seminar-by-maria-olalla-olea-romacho-kings-college-london/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260422T113000
DTEND;TZID=Europe/Madrid:20260422T163000
DTSTAMP:20260718T190346
CREATED:20260413T114758Z
LAST-MODIFIED:20260419T204443Z
UID:24889-1776857400-1776875400@www.ift.uam-csic.es
SUMMARY:Madrid's Polygonal Gravity Seminar Series
DESCRIPTION:Venue&Time: Red Room / 11:30 / 15:00 \nPROGRAM: \n——————— \n11:00 Welcome coffee \n——————— \n11:30h     First Talk \nSpeaker: Jelle Hartong (Edinburgh U.) \nTitle: The Geometry of Gravitational Radiation \nAbstract: This talk concerns asymptotically flat vacuum solutions of GR in\n4 spacetime dimensions. The asymptotics of such metrics is quite intricate\nand depends on how we approach infinity. If we follow null geodesics we\nend up at future null infinity. This is where massless fields\, including\ngravitational radiation ends up. In this talk we will study the metric\nnear future null infinity with an emphasis on geometrical structures that\nemerge in that part of the spacetime. \nFuture null infinity of an asymptotically flat spacetime is a conformal\nCarroll manifold. I will not assume any familiarity with Carroll geometry\nand explain the relevant geometrical notions as we go along. We will\nconsider asymptotic solutions to the 4D vacuum Einstein equations where\nfuture null infinity is endowed with the most general Carroll metric data\nthat is allowed by the Einstein equations. This can be used to define an\nenergy-momentum tensor (EMT) at future null infinity by varying a suitably\nrenormalised action with respect to the boundary Carroll metric data. It\nis shown that the Ward identities obeyed by this boundary EMT agree with\nthe Bondi loss equations that describe the loss of energy and momentum due\nto the emission of gravitational waves. The metric near future null\ninfinity can be formulated in terms of a Cartan geometry based on the\nconformal Carroll algebra. The non-vanishing curvatures of said algebra\ndictate how radiative the spacetime is. For example\, the vacuum degeneracy\nis described by a flat conformal Carroll connection. We will see that the\nBondi loss equations can be rewritten as flux-balance laws where the\nfluxes are determined by the Cartan geometry for the conformal Carroll\nalgebra. \n——————– \n15:00h     Second Talk \nSpeaker: Eric A. Bergshoeff (U. of Groningen) \nTitle: Massive gravity in the lab \nAbstract: In this talk I will discuss a connection between the so-called\nchiral massive GMP spin-2 mode in the Fractional Quantum Hall effect and a\nthree-dimensional (one time and two space) relativistic massive spin-2\nfield in quantum field theory. In particular\, I will show how the spin-2\nGMP mode follows by taking a special non-relativistic limit of linearized\nthree-dimensional massive gravity which are the planar Fierz-Pauli\nequations. I will discuss how these results can be generalized to integer\nhigher-spins and will present results for half-integer spins as well. \n——————– \n16:15  Farewell coffee \n—————————————————————————– \nMore information about these and following monthly seminars can be found at the\nwebpage \nhttps://sites.google.com/view/polygrav \nWe very much hope to see you there! (No registration is needed) \nFernando Barbero (IEM)\, Guillermo Mena (IEM)\, Luis Garay (UCM)\,\nMercedes Martin-Benito (UCM)\, Daniele Oriti (UCM)\, Tomas Ortin(IFT)\, Francesca\nVidotto (IEM)\, Eduardo Villaseñor (UC3M)
URL:https://www.ift.uam-csic.es/event/madrids-polygonal-gravity-seminar-series-2/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260420T150000
DTEND;TZID=Europe/Madrid:20260420T150000
DTSTAMP:20260718T190346
CREATED:20251128T155230Z
LAST-MODIFIED:20260420T101759Z
UID:23977-1776697200-1776697200@www.ift.uam-csic.es
SUMMARY:Seminar by Isaac Tutusaus (ICE\, Barcelona)
DESCRIPTION:Title: Probe combination to constrain cosmology in Euclid \nSpeaker: Isaac Tutusaus (ICE\, Barcelona) \nVenue&Time: Red Room / 15:00 \nAbstract: Following its successful launch in July 2023 and the start of its scientific survey in February 2024\, Euclid has become the first stage-IV photometric survey in operations. In addition to its photometric observations\, Euclid is also conducting a spectroscopic survey\, which allows us to add even more probes to a combined analysis from Euclid data alone. In this talk I will present the forecasts for a combined analysis at the end of the mission\, focusing in particular on how combining multiple probes helps break parameter degeneracies and leads to tighter constraints on the cosmological model under investigation. I will conclude by outlining current efforts toward a combined analysis with Euclid’s first data release.
URL:https://www.ift.uam-csic.es/event/seminar-by-isaac-tutusaus-ice-barcelona/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260416T150000
DTEND;TZID=Europe/Madrid:20260416T160000
DTSTAMP:20260718T190346
CREATED:20260119T110832Z
LAST-MODIFIED:20260416T075356Z
UID:24228-1776351600-1776355200@www.ift.uam-csic.es
SUMMARY:Seminar: 'Symmetry TFTs for Continuous Spacetime Symmetries'
DESCRIPTION:Title: Symmetry TFTs for Continuous Spacetime Symmetries \nSpeaker: Iñaki Garcia Etxebarria (Durham U.) \nVenue & Time: Red Room / 3:00 PM \nAbstract: I will discuss our recent proposal for the Symmetry Topological Field Theory (SymTFT) for global\, continuous spacetime symmetries ( https://arxiv.org/abs/2509.07965 ). For a d-dimensional theory\, it is given by a (d + 1)-dimensional BF-theory for the spacetime symmetry group\, and whenever d is even\, it includes also Chern-Simons couplings\, that encode conformal and gravitational anomalies. This proposal is supported by the similarity to two- dimensional Jackiw-Teitelboim gravity in the d = 1 case and the topological limit of four-dimensional gravity in the d = 3 case. I will discuss how topological defects constructed from this SymTFT act by applying the associated spacetime symmetry transformation. Finally\, I will discuss the relation to gravity and holography.
URL:https://www.ift.uam-csic.es/event/seminar-by-inaki-garcia-etxebarria/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260409T150000
DTEND;TZID=Europe/Madrid:20260409T160000
DTSTAMP:20260718T190346
CREATED:20260310T093813Z
LAST-MODIFIED:20260407T094840Z
UID:24570-1775746800-1775750400@www.ift.uam-csic.es
SUMMARY:Seminar: 'EFTs for BSM: Counting\, Ambiguities\, and Application'
DESCRIPTION:Title: ‘EFTs for BSM: Counting\, Ambiguities\, and Application’\n\n\nSpeaker: Shakeel Ur Rahaman (IPPP Durham).\n\n\nVenue&Time: Red Room / 15:00 \nAbstract: The two principal frameworks for modeling the Beyond Standard Model physics as an Effective Field Theory (EFT) are the Standard Model EFT (SMEFT) and the Higgs Effective Field Theory (HEFT). SMEFT is constructed in the electroweak symmetric phase\, inherently utilizing the Higgs doublet\, whereas HEFT is defined in the broken phase using the physical Higgs boson alongside a separate set of Goldstone bosons. The unavoidable necessity of truncating these effective field theory expansions creates technical ambiguities that are fundamentally interwoven with the redundancies inherent in general field redefinitions. In this talk regarding HEFT\, the focus will be primarily on its methodology for building operators\, its power counting scheme\, and the associated truncation uncertainties. These properties are already well-established within the SMEFT framework. For SMEFT\, the discussion will center on its application in precision calculations and its practical implementation in Monte Carlo event generators such as Sherpa.
URL:https://www.ift.uam-csic.es/event/seminar-by-shakeel-ur-rahaman/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260323T150000
DTEND;TZID=Europe/Madrid:20260323T160000
DTSTAMP:20260718T190346
CREATED:20251121T121550Z
LAST-MODIFIED:20260319T102754Z
UID:23860-1774278000-1774281600@www.ift.uam-csic.es
SUMMARY:Seminar: 'Observing Quantum Gravity in Extremely Cold Horizons'
DESCRIPTION:Title: ‘Observing Quantum Gravity in Extremely Cold Horizons’ \nSpeaker: Roberto Emparan (Universidad de Barcelona) \nVenue&Time: Red Room / 15:00 \nAbstract: Recent developments have revealed that black holes near extremality exhibit large quantum fluctuations in their geometry\, marking a controllable breakdown of semiclassical quantum field theory in curved spacetime. In this talk\, I will discuss how these fluctuations can be revealed through scattering waves off the black hole. In particular\, we find that extremely cold black holes become transparent to low-frequency light or gravitational radiation. Although such signatures are extraordinarily hard to detect\, they provide concrete signatures of quantum gravity at play in near-extremal regimes.
URL:https://www.ift.uam-csic.es/event/seminar-by-roberto-emparan-universidad-de-barcelona/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260319T150000
DTEND;TZID=Europe/Madrid:20260319T160000
DTSTAMP:20260718T190346
CREATED:20260119T104543Z
LAST-MODIFIED:20260310T093507Z
UID:24222-1773932400-1773936000@www.ift.uam-csic.es
SUMMARY:Seminar: 'Beyond the Minimal Axion: Robustness of Standard Predictions'
DESCRIPTION:Title: ‘Beyond the Minimal Axion: Robustness of Standard Predictions’ \nSpeaker: Sung Mook Lee (CERN) \nVenue & Time: Red Room / 15:00 \nAbstract: The QCD axion is one of the most compelling candidates for physics beyond the Standard Model\, as it can simultaneously solve the strong CP problem and account for the dark matter abundance. In the minimal single-axion framework\, especially in a post-inflationary cosmology\, the combination of axion gauge coupling quantization and axion production from string networks leads to sharp and highly predictive targets. In this talk\, we revisit these predictions in a simple but realistic setup with an additional confining dark gauge group and extra axion degrees of freedom. We will show how axion mixing and defect dynamics can modify both the coupling predictions and the relic abundance expectations through emergent features specific to multi axion scenarios\, and discuss when the standard single axion benchmarks remain reliable. This provides a useful test of what remains truly robust in extended axion theories and helps guide current experimental targets.
URL:https://www.ift.uam-csic.es/event/seminar-by-sung-mook-lee/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260316T150000
DTEND;TZID=Europe/Madrid:20260316T160000
DTSTAMP:20260718T190346
CREATED:20260129T125545Z
LAST-MODIFIED:20260225T163411Z
UID:24308-1773673200-1773676800@www.ift.uam-csic.es
SUMMARY:Seminar: 'Effective Field Theory for Thermal Phase transitions'
DESCRIPTION:Title; ‘Effective Field Theory for Thermal Phase transitions’ \nSpeaker: Mikael Chala (Granada) \nVenue&Time: Red Room / 15:00 \nAbstract: I will present recent progress in applying effective field theory (EFT) to the precise computation of thermal phase transition parameters and the associated gravitational wave spectra. I will also briefly comment on byproducts of this work\, including new methods for two-loop renormalization in EFT or skyrmion degrees of freedom emerging only at finite temperature. \n \n 
URL:https://www.ift.uam-csic.es/event/ift-seminar-mikael-chala-granada/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260309T150000
DTEND;TZID=Europe/Madrid:20260309T160000
DTSTAMP:20260718T190346
CREATED:20260119T104415Z
LAST-MODIFIED:20260309T065159Z
UID:24220-1773068400-1773072000@www.ift.uam-csic.es
SUMMARY:Seminar: 'How string theory computes quantum gravity amplitudes'
DESCRIPTION:Title: ‘How string theory computes quantum gravity amplitudes’ \nSpeaker: Lorenz Eberhardt (U. Amsterdam) \nVenue&Time: Red Room / 15:00 \nAbstract: String theory provides a framework in which quantum gravitational scattering amplitudes are ultraviolet finite and computable in perturbation theory. These amplitudes are defined by integrating over the moduli space of Riemann surfaces\, replacing the Feynman diagram expansion of field theory by a sum over worldsheet topologies. I will review how this definition arises and explain structural properties such as UV-finiteness\, dual resonance and their Regge behavior. I will then discuss recent progress in explicit computations\, focusing on one-loop amplitudes and new results on their high-energy behavior.
URL:https://www.ift.uam-csic.es/event/seminar-lorenz-eberhardt-amsterdam/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260305T150000
DTEND;TZID=Europe/Madrid:20260305T170000
DTSTAMP:20260718T190346
CREATED:20251128T154844Z
LAST-MODIFIED:20260225T162954Z
UID:23971-1772722800-1772730000@www.ift.uam-csic.es
SUMMARY:Seminar: 'Cosmological Magnetic Fields from Ultralight Dark Matter'
DESCRIPTION:Title: Cosmological Magnetic Fields from Ultralight Dark Matter \nSpeaker: Robert Brandenberger (McGill) \nVenue&Time: Red Room / 15:00 \nAbstract: A coherently oscillating ultralight dark matter field which couples to electromagnetism in the same way as an axion induces a tachyonic instability which leads to the generation of cosmological magnetic fields immediately after the time of recombination. The mechanism also opens up channels which can facilitate the formation of supermassive black holes.
URL:https://www.ift.uam-csic.es/event/seminar-by-robert-brandenberger-mcgill/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260302T150000
DTEND;TZID=Europe/Madrid:20260302T160000
DTSTAMP:20260718T190346
CREATED:20251128T154934Z
LAST-MODIFIED:20260225T163456Z
UID:23973-1772463600-1772467200@www.ift.uam-csic.es
SUMMARY:Seminar: 'The tensions of LCDM: An update of observations and theoretical implications'
DESCRIPTION:Title: ‘The tensions of LCDM: An update of observations and theoretical implications’ \nSpeaker: Leandros Perivolaropoulos (Ioannina) \nVenue&Time: Red Room / 15:00 \nAbstract: The standard LCDM cosmological model\, despite its success in describing the large-scale structure of the Universe\, is currently challenged by statistically significant discrepancies between early and late-universe observations. In this talk\, I provide a comprehensive update on observational status and theoretical implications of three major tensions: the Hubble (H0) constant discrepancy\, the DESI DR2 Phantom-Crossing Anomaly\, and the S8 tension. First\, I re-examine the H0 tension by classifying 88 Sound-Horizon-Free measurements. This analysis reveals that the discrepancy is not merely an “Early vs. Late” issue but is fundamentally driven by a clash between the Distance Ladder and the majority of other probes (reaching a significance of ~ 6.5\sigma). I will further discuss why simple late-time modifications to the expansion history fail to solve this tension due to constraints from unanchored Type Ia Supernovae (Pantheon+)\, effectively establishing a “no-go” theorem for such solutions.\nSecond\, I address the implications of the recent DESI DR2 data\, which favors a dynamical dark energy equation of state crossing the phantom divide (w(z) < -1). While this behavior is forbidden in simple quintessence models within General Relativity\, I demonstrate how it can be naturally accommodated in reconstructed Scalar-Tensor theories. By allowing for an evolving effective gravitational constant (G_eff)\, these models can fit the phantom crossing while simultaneously alleviating the Hubble tension. Finally\, I review the current landscape of the S8 tension. I discuss the shift toward a “Combined CMB” baseline (Planck + ACT + SPT) which reduces uncertainties\, and analyze the dichotomy currently present in weak lensing surveys (e.g.\, DES Year 6 vs. KiDS Legacy). I conclude by summarizing which theoretical extensions of LCDM remain viable in the face of these combined precision constraints. (edited)
URL:https://www.ift.uam-csic.es/event/seminar-by-leandros-perivolaropoulos-ioannina/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260226T150000
DTEND;TZID=Europe/Madrid:20260226T160000
DTSTAMP:20260718T190346
CREATED:20260119T110411Z
LAST-MODIFIED:20260225T154031Z
UID:24224-1772118000-1772121600@www.ift.uam-csic.es
SUMMARY:Seminar: 'Sub-PeV gamma-ray astronomy and its physics'
DESCRIPTION:Title: ‘Sub-PeV gamma-ray astronomy and its physics’ \nSpeaker: Sei Kato (Sorbonne Université\, Institut d’Astrophysique de Paris) \nVenue&Time: Red Room / 15:00 \nAbstract: This talk will focus on the physics that can be explored with sub-PeV gamma-ray astronomy (E > 10^14 eV)\, particularly on the Galactic diffuse gamma rays and the dark matter. Also\, our project called ALPACA\, which aims systematic sub-PeV gamma-ray observations in the southern sky for the first time in the world\, is detailedly presented.
URL:https://www.ift.uam-csic.es/event/seminar-by-sei-kato-institut-dastrophysique-de-paris/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260226T110000
DTEND;TZID=Europe/Madrid:20260226T120000
DTSTAMP:20260718T190346
CREATED:20260220T140022Z
LAST-MODIFIED:20260716T090204Z
UID:24432-1772103600-1772107200@www.ift.uam-csic.es
SUMMARY:GRASS Seminar: 'Gravitational Duality at the Lightring\, QNM isospectrality\, and Ringdown Nonlinearities from Penrose Limits'
DESCRIPTION:Gravity\, Supergravity and Superstrings (GRASS) Seminar \nSpeaker: David Pereñiguez (Johns Hopkins U.) \nTitle: ‘Gravitational Duality at the Lightring\, QNM isospectrality\, and Ringdown Nonlinearities from Penrose Limits’ \nAbstract: At high frequencies\, the physics near a black hole’s lightring can be captured by Penrose-limit plane waves adapted to the photon sphere. In this talk\, I will solve exactly the equations for gravitational perturbations in this limit using Penrose’s 2-spinor formalism\, and I will show that the resulting solutions correspond to quasinormal modes (QNMs) in the eikonal regime. I will then prove that gravitational electric–magnetic duality holds on-shell for perturbations at the lightring. This symmetry has long been understood to hold on-shell only for perturbations about flat spacetime. The lightring therefore provides a distinct setting in which it reemerges. In addition\, QNM isospectrality follows as an immediate consequence. I will next extend the analysis to nonlinear gravitational fluctuations\, where the duality is broken\, and compute the excitation of quadratic QNMs\, which are particularly relevant given recent prospects for their detection. I will conclude by discussing further directions in which Penrose limits can be used to sharpen our understanding of lightring physics. This seminar is related to the I+D+i project whose reference is CEX2020-001007-S\, funded by MCIN/AEI/10.13039/501100011033. The topic is framed within the following research line: Strings and quantum gravity (Gravity/Strings).
URL:https://www.ift.uam-csic.es/event/grass-seminar-gravitational-duality-at-la-lightring-qnm-isospectrality-and-ringdown-nonlinearities-from-penrose-limits/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260224T150000
DTEND;TZID=Europe/Madrid:20260224T160000
DTSTAMP:20260718T190346
CREATED:20260129T125218Z
LAST-MODIFIED:20260219T111953Z
UID:24306-1771945200-1771948800@www.ift.uam-csic.es
SUMMARY:Seminar: Primordial black holes from Q-balls
DESCRIPTION:Speaker: Shunsuke Neda (ICRR\, Univ. of Tokyo) \nVenue & Time: Red Room / 15:00 \nTitle: Primordial black holes from Q-balls \nAbstract:  \nWe discuss primordial black holes (PBHs) originating from Q-balls\, which are non-topological solitons arising in complex scalar field theories with a global U(1) symmetry. Depending on the cosmic expansion history\, Q-balls can source PBH formation in both early matter-dominated (eMD) and radiation-dominated (RD) universes\, leading to distinct phenomenological consequences. \nIn the eMD scenario\, PBHs produced from Q-balls can account for the observed dark matter abundance\, and we summarize the resulting cosmological constraints. In contrast\, some scenarios of PBHs formed in a radiation-dominated universe exhibit strong PBH clustering. When motivated as seeds of supermassive black holes\, their abundance and spatial distribution are observationally constrained by isocurvature perturbations. For stellar-mass PBHs relevant to LIGO-Virgo-KAGRA\, we compute PBH merger rates in the presence of initial PBH clustering using updated methodologies. \nThis seminar illustrates how PBHs from Q-balls link particle physics models to cosmological\, astrophysical\, and gravitational-wave observations across multiple mass scales.
URL:https://www.ift.uam-csic.es/event/seminar-primordial-black-holes-from-q-balls/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260223T150000
DTEND;TZID=Europe/Madrid:20260223T160000
DTSTAMP:20260718T190346
CREATED:20251014T123153Z
LAST-MODIFIED:20260626T074506Z
UID:23328-1771858800-1771862400@www.ift.uam-csic.es
SUMMARY:Seminar: 'Asymmetric Dark Matter induced by Baryogenesis'
DESCRIPTION:Title: ‘Asymmetric Dark Matter induced by Baryogenesis’ \nSpeaker: Miguel Escudero (CERN) \nVenue&Time: Red Room / 15:00 \nAbstract: We live in a Universe where structures are made out of baryons but not of antibaryons. Could the dark matter be made of particles and not antiparticles? This is an old question and many asymmetric dark matter scenarios have been proposed to date. Among them\, the models where a dark matter asymmetry is induced from the baryon/lepton asymmetries are particularly motivated. In this seminar\, I will highlight the motivations for these types of frameworks but also their challenges. I will then present a new\, minimal\, and predictive scenario that we developed in [2511.10731]. In this model\, a dark matter asymmetry is slowly generated from the Standard Model Higgs doublet asymmetry. The scenario features two dark matter states which can lead to signals in the next generation of dark matter experiments\, and we predict a new inert Higgs doublet with mass < 580 GeV which could be produced and observed at the LHC and future colliders. \nThis seminar is related to the I+D+i project whose reference is CEX2020-001007-S\, funded by MCIN/AEI/10.13039/501100011033. The topic is framed within the following research line: Particle Physics in the Standard Model and Beyond (BSM). \n \n  \n 
URL:https://www.ift.uam-csic.es/event/seminar-by-miguel-escudero/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260209T150000
DTEND;TZID=Europe/Madrid:20260209T160000
DTSTAMP:20260718T190346
CREATED:20251128T152946Z
LAST-MODIFIED:20260209T135631Z
UID:23967-1770649200-1770652800@www.ift.uam-csic.es
SUMMARY:Seminar: 'The Muon Magnetic Moment Mystery: a 20-year puzzle in high-energy physics'
DESCRIPTION:Speaker: Zoltan Fodor (Penn State U.) \nVenue & Time: Red Room / 15:00\n\nTitle: The Muon Magnetic Moment Mystery: a 20-year puzzle in high-energy physics \nAbstract: \nIn the last two decades or so there have been stronger and stronger disagreements between direct measurements of the anomalous magnetic moment of the muon and the standard-model prediction. Such a large discrepancy would be a signal for an interaction or particle not present in the standard model. However\, already in 2020 a lattice QCD calculation suggested a “no-tension” scenario. I report on our new lattice QCD calculation\, which reduced the uncertainty of our 2020 result by about 40%. The agreement between the measured value of the anomalous magnetic moment of the muon and its theoretical predictions is an extremely impressive prove of the validity of quantum field theory –with three very different calculational frameworks for QED\, EW and QCD– up to 11 digits.
URL:https://www.ift.uam-csic.es/event/seminar-by-zoltan-fodor-penn-state-u/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260205T150000
DTEND;TZID=Europe/Madrid:20260205T160000
DTSTAMP:20260718T190346
CREATED:20251121T121740Z
LAST-MODIFIED:20260126T091823Z
UID:23864-1770303600-1770307200@www.ift.uam-csic.es
SUMMARY:Seminar by Yushi Mura (KEK)
DESCRIPTION:Title: ‘UV completion of extended Higgs models via the confinement of SU(2) gauge’ \nSpeaker: Yushi Mura (KEK) \nVenue & Time: Red Room / 15:00 \nAbstract: The extended Higgs sectors are often introduced to explain phenomena beyond the standard model. On the other hand\, the existence of multiple scalar fields may cause the Landau pole below the Planck scale. Therefore\, those models should be replaced by more fundamental theory at high energies. In this talk\, we consider an asymptotic-free SU(2) gauge theory as a UV-completion of the extended Higgs models and assume they are the consequence of confinement of the gauge theory. We find that particle contents of various extended Higgs sectors previously proposed are deduced by each charge assignment of flavor symmetry of the fundamental fermions of the SU(2) gauge symmetry.
URL:https://www.ift.uam-csic.es/event/seminar-by-yushi-mura-kek/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260204T113000
DTEND;TZID=Europe/Madrid:20260204T170000
DTSTAMP:20260718T190346
CREATED:20260202T070813Z
LAST-MODIFIED:20260202T070813Z
UID:24319-1770204600-1770224400@www.ift.uam-csic.es
SUMMARY:Seminar: 'Co-Scaling and Alignment of Electric and Magnetic States'
DESCRIPTION:Speaker: Tom Rudelius (Durham U.\, Dept. of Math.)\n\n\n\n\n\n\nTitle: Co-Scaling and Alignment of Electric and Magnetic States\n\n\n\nVenue & Time: Red Room / 11:30\n\n\n\n\n\n\n\n\nAbstract: Towers of electrically and magnetically charged states in quantum gravity often exhibit two important properties. First\, the ratio of the mass (or tension) of electrically charged states to magnetically charged states is of order g^2\, which we refer to as “co-scaling.” Second\, in theories of multiple gauge fields\, the towers of states that exhibit co-scaling have charges that point in approximately the same direction in charge space as measured by the gauge kinetic matrix\, which we refer to as “alignment.” In this talk\, I present heuristic arguments for and examples of co-scaling and alignment in the string landscape\, and I discuss applications to phenomenology and cosmology.
URL:https://www.ift.uam-csic.es/event/seminar-co-scaling-and-alignment-of-electric-and-magnetic-states/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260202T150000
DTEND;TZID=Europe/Madrid:20260202T160000
DTSTAMP:20260718T190346
CREATED:20251128T152750Z
LAST-MODIFIED:20260625T091139Z
UID:23965-1770044400-1770048000@www.ift.uam-csic.es
SUMMARY:Seminar: 'F(ℓ)avoured searches: new physics in the 3rd generation'
DESCRIPTION:Title: ‘F(ℓ)avoured searches: new physics in the 3rd generation’ \nSpeaker: Tamara Vázquez Schröder (IFAE) \nVenue & Time: Red Room / 15:00 \n\n \n  \nAbstract: The primary goal of the Large Hadron Collider (LHC) has been to discover the mechanism of electroweak symmetry breaking (EWSB). The discovery of the Standard Model (SM)-like Higgs boson in 2012 was the first step to achieve this. However\, the underlying nature of EWSB remains unknown. Additionally\, the SM cannot explain the origin of neutrino masses\, the asymmetry between matter and antimatter in our universe\, or the nature of dark matter and dark energy. It also cannot address important conceptual questions\, such as why is the Higgs boson so light compared to the Planck scale\, or what are the underlying dynamics through which the Higgs field provides masses to the fundamental particles. Even though the LHC has not discovered any Beyond the Standard Model physics\, there are multiple hints in various areas of particle physics which could revolutionise our understanding of the elementary particles and the forces between them\, leading to the start of a new Higgs and Flavour Era. In this talk I will dive into promising new physics models coupled preferentially to 3rd generation quarks or leptons that could address some of the shortcomings of the SM and could potentially explain some of the observed tensions in the particle physics landscape. Being potentially at the reach of the LHC collision energy\, the search for these new physics signals in the multilepton final state could be the key to access a new era in particle physics exploration. \nThis seminar is related to the I+D+i project whose reference is CEX2020-001007-S\, funded by MCIN/AEI/10.13039/501100011033. The topic is framed within the following research line: Particle Physics in the Standard Model and Beyond (BSM). \n  \n \n 
URL:https://www.ift.uam-csic.es/event/ift-seminar-tamara-vazquez-schroder/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260129T150000
DTEND;TZID=Europe/Madrid:20260129T160000
DTSTAMP:20260718T190346
CREATED:20251128T152607Z
LAST-MODIFIED:20260625T090146Z
UID:23963-1769698800-1769702400@www.ift.uam-csic.es
SUMMARY:Seminar by Ennio Salvioni (IFAE): 'Probing the Dark Sector with Large Scale Structure'
DESCRIPTION:Title: ‘Probing the Dark Sector with Large Scale Structure’ \nSpeaker: Ennio Salvioni (IFAE) \nVenue&Time: Red Room / 15:00 \nAbstract: Precision cosmology offers opportunities to test the nature of dark matter independently of any interactions with the visible sector. I will discuss how data from galaxy surveys\, including the ongoing DESI and Euclid projects\, can be leveraged to probe new dynamics in the dark sector. For this purpose\, I will show how to extend the Effective Field Theory of Large Scale Structure to include physics beyond the Standard Model\, enabling perturbative computations of the power spectrum of galaxies. The scenarios I will discuss include long-range dark matter self-interactions\, and sub-components of dark matter exhibiting suppressed growth of structure\, such as ultra-light axions or light thermal relics. \nThis seminar is related to the I+D+i project whose reference is CEX2020-001007-S\, funded by MCIN/AEI/10.13039/501100011033. The topic is framed within the following research line: Origin and composition of the universe: Astroparticles and Cosmology (Astro/Cosmo).
URL:https://www.ift.uam-csic.es/event/ift-seminar-ennio-salvioni/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Scientific activities,Seminars
END:VEVENT
END:VCALENDAR