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X-ORIGINAL-URL:https://www.ift.uam-csic.es
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:20260504T150000
DTEND;TZID=Europe/Madrid:20260504T160000
DTSTAMP:20260713T233123
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:20260505T110000
DTEND;TZID=Europe/Madrid:20260505T120000
DTSTAMP:20260713T233123
CREATED:20260504T101730Z
LAST-MODIFIED:20260504T101730Z
UID:24981-1777978800-1777982400@www.ift.uam-csic.es
SUMMARY:ML-AI Journal Club: 'Machine Learning in Astroparticle Physics'
DESCRIPTION:Title: ‘Machine Learning in Astroparticle Physics’ \nSpeaker: Daniel Nieto Castaño (IPARCOS/UCM) \nVenue&Time: Gray Room 2 / 11:00 \nAbstract: This seminar presents the motivation for employing machine\nlearning (ML) techniques to mitigate some experimental limitations\nwithin the field of astroparticle physics. We will briefly review\nselected applications across various detection domains\, specifically\naddressing astrophysical neutrinos\, cosmic rays\, and dark matter\ncandidates. Particular emphasis will be placed upon the analysis of\nvery-high-energy gamma-rays\, illustrating how these ML frameworks are\nincreasingly integral to advancing current observational capabilities.
URL:https://www.ift.uam-csic.es/event/ml-ai-journal-club-machine-learning-in-astroparticle-physics/
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260505T113000
DTEND;TZID=Europe/Madrid:20260505T130000
DTSTAMP:20260713T233123
CREATED:20260423T152851Z
LAST-MODIFIED:20260423T153018Z
UID:24936-1777980600-1777986000@www.ift.uam-csic.es
SUMMARY:Holo Club: Holographic transport in anisotropic systems
DESCRIPTION:Title: Holographic transport in anisotropic systems \nSpeaker: Claire Moran (Utrecht University) \nVenue&Time: Blue Room & Zoom / 11:30 \nAbstract: \nUnderstanding transport in strongly coupled quantum systems remains a\ncentral challenge across high-energy physics\, condensed matter\, and\nquantum many-body theory. Of particular interest is systems exhibiting\nanisotropy\, where the anisotropy leads to a much richer transport\nstructure\, with new transport coefficients emerging. The bulk\nviscosity becomes especially subtle in anisotropic media\, where it can\ncouple nontrivially to directional degrees of freedom and underlying\nmicroscopic structure. \nIn this talk\, I will discuss a recently developed holographic method\nfor computing the bulk viscosity in such systems. This approach\ncircumvents technical obstacles present in existing treatments and\nyields analytic expressions. I will discuss the general structure of\nthe method\, and highlight some applications of it. \nJoin Zoom Meeting \nhttps://us02web.zoom.us/j/86014678323?pwd=5zJvboElv4bYFZpjb8P3GMZzqCHCMA.1 \nMeeting ID: 860 1467 8323 \nPasscode: 406116
URL:https://www.ift.uam-csic.es/event/holo-club-holographic-transport-in-anisotropic-systems/
LOCATION:Blue Room\, Instituto de Física Teórica (IFT) - C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260505T140000
DTEND;TZID=Europe/Madrid:20260505T150000
DTSTAMP:20260713T233123
CREATED:20260406T091722Z
LAST-MODIFIED:20260406T091722Z
UID:24818-1777989600-1777993200@www.ift.uam-csic.es
SUMMARY:Cosmology Journal Club
DESCRIPTION:Every Tuesday at 2:00 PM in the discussion room on the 5th floor. \nJoin the IFT cosmology/gravity journal club at benty-fields.com to vote for papers and volunteer to present them
URL:https://www.ift.uam-csic.es/event/cosmology-journal-club-24/
LOCATION:Discussion room 5th floor\, C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, Madrid\, 28049\, Spain
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260506T110000
DTEND;TZID=Europe/Madrid:20260506T120000
DTSTAMP:20260713T233123
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:20260506T113000
DTEND;TZID=Europe/Madrid:20260506T123000
DTSTAMP:20260713T233123
CREATED:20260504T074101Z
LAST-MODIFIED:20260504T074101Z
UID:24970-1778067000-1778070600@www.ift.uam-csic.es
SUMMARY:Quantum Information Journal Club: "Symmetry-protected topology and deconfined solitons in a multi-link Z2 gauge theory"
DESCRIPTION:Speaker: Enrico Calogero Domanti\n\nTitle: “Symmetry-protected topology and deconfined solitons in a multi-link Z2 gauge theory”\n\nVenue&Time: Gray Room 3 / 11:30\n\nAbstract: With the advent of quantum simulators\, exploring exotic collective phenomena in lattice models with local symmetries and unconventional geometries is at reach of near-term experiments. Motivated by recent progress in this direction\, we study a Z2 lattice gauge theory defined on a multi-graph with links that host Z2 gauge fields. Elementary Wilson loops along pairs of these bonds allow to identify a dynamical gauge-invariant flux\, responsible for Aharonov-Bohm-like interference effects in the tunneling dynamics of charged matter residing on the vertices. We find inhomogeneous phases in which an ordered pattern of the gauge fluxes spontaneously breaks translational invariance. For an even number of links\, this is caused by a phenomenon of dynamical Aharonov-Bohm caging\, in which particles get trapped into portions of the lattice due to destructive interference. On the other hand\, an odd number of links realizes a phenomenon analogous to the Peiels instability. In this case\, long-range order is shown to coexist with symmetry protected topological order\, which survives the quantum fluctuations of the gauge flux induced by an external electric field. Doping the system above half filling leads to the formation of topological soliton/anti-soliton pairs interpolating between different inhomogeneous orderings of the gauge fluxes. Quasiparticles carrying fractional charge and bound at the soliton centers emerge as deconfined degrees of freedom\, as they can be arbitrarily separated without feeling a confining force\, in spite of the long-range attractive interactions set by the small electric field on the individual integer charges.
URL:https://www.ift.uam-csic.es/event/quantum-information-journal-club-symmetry-protected-topology-and-deconfined-solitons-in-a-multi-link-z2-gauge-theory/
LOCATION:Gray Room 3\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260507T113000
DTEND;TZID=Europe/Madrid:20260507T123000
DTSTAMP:20260713T233123
CREATED:20260504T073228Z
LAST-MODIFIED:20260504T073228Z
UID:24966-1778153400-1778157000@www.ift.uam-csic.es
SUMMARY:Shannon's Corner Journal Club: "Zeros of the partition function and their algorithmic application"
DESCRIPTION:Speaker: Aram Harrow (MIT) \nTitle: “Zeros of the partition function and their algorithmic application” \nVenue&Time: Gray Room 1 / 11:30 \nAbstract: “At high temperatures quantum systems generally lose\nlong-range order.  We would expect that this makes them easier to\nsimulate.  One way to understand this is through the analytic\nproperties of the partition function.  Viewing Z(beta) = tr e^{-beta\nH} as a function of a complex beta\, its zeros turn out to tell us both\nabout phase transitions and about classical algorithms for estimating\nZ(beta).”
URL:https://www.ift.uam-csic.es/event/shannons-corner-journal-club-zeros-of-the-partition-function-and-their-algorithmic-application/
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260507T113000
DTEND;TZID=Europe/Madrid:20260507T123000
DTSTAMP:20260713T233123
CREATED:20260504T073526Z
LAST-MODIFIED:20260504T075639Z
UID:24968-1778153400-1778157000@www.ift.uam-csic.es
SUMMARY:SPS Journal Club: 'Calibration\, fuzziness: new results on AdS vacuum decay'
DESCRIPTION:Strings\, Pheno and the Swampland (SPS) Journal Club \n  \nSpeaker: Vincent Menet (Università Milano Bicocca) \n\n  \nTitle: ‘Calibration\, fuzziness: new results on AdS vacuum decay’\n  \nVenue&Time: Red Room / 11:30 \n\n  \nAbstract: Motivated by swampland conjectures\, we study the stability of AdS type II supergravity vacua. In the literature\, vacuum decay mediated by abelian D-branes has been discussed extensively\, while this isn’t quite the case for both the D-brane bound states\, and their non-abelian counterparts. In this context\, we first present a tool to study large classes of D-branes and bound states\, based on calibration theory\, and then discuss vacuum decay mediated by weakly non-abelian D-branes. We illustrate our results by applying them to a few concrete AdS vacua.
URL:https://www.ift.uam-csic.es/event/sps-journal-club-calibration-fuzziness-new-results-on-ads-vacuum-decay/
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260507T120000
DTEND;TZID=Europe/Madrid:20260507T130000
DTSTAMP:20260713T233123
CREATED:20260504T072946Z
LAST-MODIFIED:20260504T072946Z
UID:24964-1778155200-1778158800@www.ift.uam-csic.es
SUMMARY:Pheno Journal Club: "On the Inverse Problem in Effective Field Theory"
DESCRIPTION:Jaime Fernandez Tejedor (IFT) will present “On the Inverse Problem in Effective Field Theory”.\n\nVenue&Time: Gray Room 2 / 12:00\n\nAbstract:\n\nWe show that the tree-level spectrum of heavy particles can be directly extracted from the Wilson coefficients of the corresponding effective field theory at low energies. This procedure is exact when the number of resonances is finite\, and otherwise approximate. Our results are derived from a new class of analytic dispersion relations that depend nonlinearly on the scattering amplitude and apply to an exceedingly broad class of theories and kinematics.
URL:https://www.ift.uam-csic.es/event/pheno-journal-club-on-the-inverse-problem-in-effective-field-theory/
LOCATION:Grey Room 2\, Instituto de Física Teórica\, Madrid\, Madrid\, 28037\, Spain
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260507T150000
DTEND;TZID=Europe/Madrid:20260507T160000
DTSTAMP:20260713T233123
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:20260511T150000
DTEND;TZID=Europe/Madrid:20260511T160000
DTSTAMP:20260713T233123
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:20260512T113000
DTEND;TZID=Europe/Madrid:20260512T123000
DTSTAMP:20260713T233123
CREATED:20260508T084010Z
LAST-MODIFIED:20260508T084010Z
UID:25026-1778585400-1778589000@www.ift.uam-csic.es
SUMMARY:Holo-Club: 'Emergence of Closed Universes in Holography'
DESCRIPTION:Speaker: Martin Sasieta (U. Berkeley) \nTitle: ‘Emergence of Closed Universes in Holography’ \nVenue&Time: Gray Room 3 / 11:30 \nAbstract: \nI will present recent constructions of closed universes in AdS/CFT and  AdS2 holography\, and discuss some of the puzzles they pose.
URL:https://www.ift.uam-csic.es/event/holo-club-emergence-of-closed-universes-in-holography/
LOCATION:Gray Room 3\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260512T140000
DTEND;TZID=Europe/Madrid:20260512T150000
DTSTAMP:20260713T233123
CREATED:20260406T091756Z
LAST-MODIFIED:20260406T091756Z
UID:24819-1778594400-1778598000@www.ift.uam-csic.es
SUMMARY:Cosmology Journal Club
DESCRIPTION:Every Tuesday at 2:00 PM in the discussion room on the 5th floor. \nJoin the IFT cosmology/gravity journal club at benty-fields.com to vote for papers and volunteer to present them
URL:https://www.ift.uam-csic.es/event/cosmology-journal-club-25/
LOCATION:Discussion room 5th floor\, C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, Madrid\, 28049\, Spain
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260513T153000
DTEND;TZID=Europe/Madrid:20260513T160000
DTSTAMP:20260713T233123
CREATED:20260429T084112Z
LAST-MODIFIED:20260429T084150Z
UID:24960-1778686200-1778688000@www.ift.uam-csic.es
SUMMARY:DIFT Colloquium by Benjamin Grinstein (University of California\, San Diego)
DESCRIPTION:Title: Buckets versus pipes: the neutron lifetime puzzle\n\nSpeaker: Benjamin Grinstein\, University of California\, San Diego\n\n\nDate and time: 15:30h (CEST)\, Wednesday\, May 13\, 2026\n\nLocation: CFTMAT Auditorium\n\n\nAbstract: A precise knowledge of the neutron lifetime is important because it serves as a fundamental input for Big Bang Nucleosynthesis (BBN) models\, which predict the primordial abundances of light elements. It also enters in the determination of the Cabibbo mixing angle\, crucial in testing the validity of the CKM theory of quark flavor\, in understanding reactor neutrino detection rates and the behavior of matter in extreme environments like neutron stars. Precise experiments give very precise results\, but the values determined differ by over 1% with high statistical significance depending on the technology used for the experiment. In this talk I will review this so-called “neutron lifetime puzzle” and some of the proposed solutions.\n\nJoin Zoom Meeting:\nhttps://us02web.zoom.us/j/83038393323?pwd=D15OuSwa2oC0jwhQ5dVxL3EFQa1pY8.1\nMeeting ID: 830 3839 3323\nPasscode: 211261
URL:https://www.ift.uam-csic.es/event/dift-colloquium-by-benjamin-grinstein-university-of-california-san-diego/
LOCATION:IFT Auditorium\, Instituto de Física Teórica (IFT) - C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, Madrid\, 28049\,\, Spain
CATEGORIES:Colloquia,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260514T113000
DTEND;TZID=Europe/Madrid:20260514T133000
DTSTAMP:20260713T233123
CREATED:20260511T080237Z
LAST-MODIFIED:20260511T080237Z
UID:25031-1778758200-1778765400@www.ift.uam-csic.es
SUMMARY:SPS Journal Club: 'Type IIB at Eight Derivatives: A Status Report'
DESCRIPTION:Strings\, Pheno and the Swampland (SPS) Journal Club \nTitle: ‘Type IIB at Eight Derivatives: A Status Report’ \nSpeaker: Raffaele Savelli (Dipartimento di Fisica & INFN\, Università di Roma “Tor Vergata”) \nVenue&Time: Red Room / 11:30 \nAbstract: \nKnowledge of ten-dimensional superstring effective actions beyond the leading order in the derivative expansion is of intrinsic interest and plays a central role in many questions in string phenomenology. For Type IIB string theory\, all the effective couplings are known at the four-point level\, but a complete characterization of the eight-derivative effective action remains elusive. \nIn this seminar\, I will discuss recent progress in deriving the five-point contact terms in sectors that mix gravity with the three-form flux and the axio-dilaton. I will present different approaches to this problem and emphasize the role of SL(2\,Z) duality in constraining the structure of eight-derivative couplings and in revealing universal kinematical patterns. Finally\, I will briefly comment on applications to lower-dimensional physics.\nThe talk is based on arXiv:2205.11530 and arXiv:2507.07934.
URL:https://www.ift.uam-csic.es/event/sps-journal-club-type-iib-at-eight-derivatives-a-status-report/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260514T120000
DTEND;TZID=Europe/Madrid:20260514T130000
DTSTAMP:20260713T233123
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:20260514T120000
DTEND;TZID=Europe/Madrid:20260514T130000
DTSTAMP:20260713T233123
CREATED:20260511T081149Z
LAST-MODIFIED:20260511T081149Z
UID:25036-1778760000-1778763600@www.ift.uam-csic.es
SUMMARY:Pheno Journal Club
DESCRIPTION:Every Thursday at 12:00 in Grey Room 2.
URL:https://www.ift.uam-csic.es/event/pheno-journal-club-13/
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260514T150000
DTEND;TZID=Europe/Madrid:20260514T183000
DTSTAMP:20260713T233123
CREATED:20260504T083135Z
LAST-MODIFIED:20260512T135216Z
UID:24973-1778770800-1778783400@www.ift.uam-csic.es
SUMMARY:Hasta la Física y Más Allá – Próxima parada\, el futuro
DESCRIPTION:Cuatro charlas breves sobre investigación puntera\, futuro y salidas profesionales.\n\n\n\n\n\nLos ponentes son personas que han seguido caminos variados dentro de la Física. Este evento es una oportunidad para conocer experiencias reales en la carrera investigadora –y fuera de ella–\, descubrir ciencia puntera\, opciones que quizá no te habías planteado y hacerte una idea de lo que puede venir después. \n \n\nCUÁNDO Y DÓNDE\nJueves\, 14 de mayo. \nEn el auditorio del Instituto de Física Teórica (IFT UAM-CSIC). Calle Nicolás Cabrera 13-15\, Campus de Cantoblanco\, Madrid. \nEl evento comienza a las 15:00 / Apertura de puertas: 14:45 \n\nCÓMO REGISTRARSE\nAdquiere tu entrada gratuita en el siguiente enlace: https://www.eventbrite.es/e/hasta-la-fisica-y-mas-alla-proxima-parada-el-futuro-tickets-1988153459517\n\n \n\n\nPROGRAMA\n\n15:00 – Bienvenida\, por Ana R. Cueto (UAM). \n15:15 – ‘El potencial del Higgs: un puente entre la física de partículas y la cosmología’ por Kateryna Radchenko (IFT UAM-CSIC) \nDurante las próximas décadas seremos testigos de una recolección de datos sin precedentes en la física de partículas. Por un lado\, el colisionador de hadrones del CERN entrará en su fase de alta luminosidad\, ampliando nuestra capacidad de explorar las interacciones a energías cada vez mayores. Por otro\, misiones como LISA inaugurarán la astronomía de ondas gravitacionales del universo temprano. Estos datos podrán arrojar luz sobre algunas de las preguntas más intrigantes que siguen abiertas en el Modelo Estándar. En muchas de ellas\, el potencial del campo de Higgs juega un papel central. Su forma puede estudiarse en colisionadores\, donde se accede a su estructura actual\, y mediante observaciones cosmológicas\, que permiten reconstruir su evolución en los primeros instantes del universo. En esta charla veremos cómo estos dos enfoques\, aparentemente muy distintos\, se complementan para construir un puente entre la física de partículas y la cosmología. \n16:00 – ‘Física del Machine Learning’ por Beatriz Seoane Bartolomé (UCM) \nEl aprendizaje automático está transformando nuestra capacidad para explotar y analizar datos complejos\, pero sigue funcionando en gran medida como una “caja negra” difícil de interpretar. En muchos casos\, ni siquiera se comprende bien desde un punto de vista teórico cuáles son sus mecanismos internos ni por qué funcionan tan bien\, lo que dificulta su uso responsable. En esta charla discutiré cómo la física\, y en particular la física estadística\, está emergiendo como una herramienta fundamental para cambiar de perspectiva y abordar su comprensión. Veremos que las redes neuronales pueden entenderse de manera natural como sistemas de espines que codifican la información mediante interacciones entre muchas variables\, de modo que propiedades como la memoria asociativa o la generación de nuevos datos no son otra cosa que fenómenos emergentes de un sistema complejo. Desde este punto de vista\, el aprendizaje deja de ser un proceso opaco y puede describirse en términos de transiciones de fase\, mientras que el papel\, y la optimización\, de los hiperparámetros surge de forma natural al estudiar los diagramas de fase del modelo. Esto no solo permite entender mejor cómo funcionan estos sistemas\, sino también identificar sus limitaciones y diseñar estrategias más eficientes. En conjunto\, esta forma de mirar el aprendizaje automático desde la física abre una vía para desarrollar modelos más interpretables\, más eficientes desde el punto de vista energético y mejor fundamentados para extraer información de sistemas complejos. \n16:45 – ‘Agujeros negros y fisica fundamental’ por José L. F. Barbón (IFT UAM-CSIC) \nQué son los agujeros negros y por qué llevan al límite a nuestras teorías fundamentales \n17:30 – Gala SPIN \nBreve reconocimiento a los estudiantes de prácticas del curso 2025–2026. Introducción a cargo de Ángel M. Uranga Urteaga (IFT UAM-CSIC). \n17:45 – ‘Cinco cosas que debes saber sobre el universo’ por José Luis Crespo (Quantum Fracture) \nConceptos como Lambda CDM y más\, explicados de la mano del reconocido divulgador. \n18:30 – Merienda de picoteo en la cafetería del IFT.
URL:https://www.ift.uam-csic.es/event/hasta-la-fisica-y-mas-alla-proxima-parada-el-futuro/
LOCATION:IFT Auditorium\, Instituto de Física Teórica (IFT) - C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, Madrid\, 28049\,\, Spain
CATEGORIES:Outreach events,Scientific culture
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260518T150000
DTEND;TZID=Europe/Madrid:20260518T160000
DTSTAMP:20260713T233123
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:20260519T140000
DTEND;TZID=Europe/Madrid:20260519T150000
DTSTAMP:20260713T233123
CREATED:20260406T091843Z
LAST-MODIFIED:20260406T091843Z
UID:24820-1779199200-1779202800@www.ift.uam-csic.es
SUMMARY:Cosmology Journal Club
DESCRIPTION:Every Tuesday at 2:00 PM in the discussion room on the 5th floor. \nJoin the IFT cosmology/gravity journal club at benty-fields.com to vote for papers and volunteer to present them \n \n 
URL:https://www.ift.uam-csic.es/event/cosmology-journal-club-26/
LOCATION:Discussion room 5th floor\, C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, Madrid\, 28049\, Spain
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260520T113000
DTEND;TZID=Europe/Madrid:20260520T123000
DTSTAMP:20260713T233123
CREATED:20260512T084922Z
LAST-MODIFIED:20260518T073317Z
UID:25038-1779276600-1779280200@www.ift.uam-csic.es
SUMMARY:Quantum Information Journal Club: 'Optimal strategies for near-term simulation of fermionic systems with scalable local fermion-to-qubit mappings'
DESCRIPTION:Title: ‘Optimal strategies for near-term simulation of fermionic systems with scalable local fermion-to-qubit mappings’\n\nSpeaker: Manuel G. Algaba\n\nVenue&Time: Gray Room 3 / 11:30\n\nAbstract: Quantum simulation of interacting fermions remains one of the most compelling applications of quantum computing\, but its practical realization depends on more than the asymptotic promise of fault-tolerant quantum algorithms. To bridge the gap with current NISQ devices\, we derive a strategy for growing the corresponding code distance of local fermion-to-qubit mappings\, which is otherwise fixed. Building upon the extended error detection properties of these mappings we present a quantum error mitigation (QEM) technique tailored for fermionic systems which outperforms other widely used techniques such as Post-selection\, Virtual Distillation\, and Probabilistic Error Cancellation in regimes of practical interest. We then study the performance of different combinations of QEM and fermion-to-qubit mappings and identify the best combination of mapping and QEM. This study enables us to derive minimal hardware requirements for the simulation of Fermi-Hubbard models of various sizes in near-term devices.
URL:https://www.ift.uam-csic.es/event/quantum-information-journal-club-optimal-strategies-for-near-term-simulation-of-fermionic-systems-with-scalable-local-fermion-to-qubit-mappings/
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260521T120000
DTEND;TZID=Europe/Madrid:20260521T130000
DTSTAMP:20260713T233123
CREATED:20260518T073652Z
LAST-MODIFIED:20260518T073805Z
UID:25057-1779364800-1779368400@www.ift.uam-csic.es
SUMMARY:Pheno Journal Club
DESCRIPTION:Every Thursday at 12:00 in Grey Room 2. \n \n 
URL:https://www.ift.uam-csic.es/event/pheno-journal-club-14/
LOCATION:Grey Room 2\, Instituto de Física Teórica\, Madrid\, Madrid\, 28037\, Spain
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260521T120000
DTEND;TZID=Europe/Madrid:20260521T130000
DTSTAMP:20260713T233123
CREATED:20260518T081511Z
LAST-MODIFIED:20260518T081511Z
UID:25059-1779364800-1779368400@www.ift.uam-csic.es
SUMMARY:SPS Journal Club: 'Generalised anomalies\, QCD\, and holography'
DESCRIPTION:Title: ‘Generalised anomalies\, QCD\, and holography’ \nSpeaker: Mohammad Akhond (Dipartimento di Fisica & INFN\, Università di Roma  “Tor Vergata”) \nVenue & Time: Red Room / 12:00 \nAbstract: During the last decade\, the notion of an ‘t Hooft anomaly has been generalised to the case of discrete symmetries. An interesting instance\, discussed by Tanizaki\, is the mixed anomaly between the discrete axial symmetry and the flavour and baryonic symmetries in massless QCD. The goal of this talk is to provide a derivation of this anomaly from a top-down holographic dual of QCD. I will show that the topological couplings in the bulk supergravity dual of the D4-D8 system encode Tanizaki’s anomaly\, once fluctuations around the bulk gauge fields are turned on. A technical challenge for this computation is the difficulty in maintaining gauge invariance of supergravity theories in the presence of D-branes. To overcome this issue\, a compact formulation of the flux sector of (massive) type IIA supergravity in the presence of D8 branes is presented.
URL:https://www.ift.uam-csic.es/event/sps-journal-club-generalised-anomalies-qcd-and-holography/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260521T150000
DTEND;TZID=Europe/Madrid:20260521T160000
DTSTAMP:20260713T233123
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:20260522T110000
DTEND;TZID=Europe/Madrid:20260522T120000
DTSTAMP:20260713T233123
CREATED:20260518T082354Z
LAST-MODIFIED:20260518T082443Z
UID:25061-1779447600-1779451200@www.ift.uam-csic.es
SUMMARY:World Day for Cultural Diversity Celebration
DESCRIPTION:Thursday May21st and Friday May 22nd (during the usual coffee time). Both in the cafeteria\n\nThe EDI committee is hosting a small event this coming week to celebrate May 21st as the World Day for Cultural Diversity for Dialogue and Development\, recognized by the UN and UNESCO.\n\nThursday:\nWorld map set up with pins and flags to mark our coubtries of origin\n\nFriday\nInternational potluck during Friday coffee.\n\nWhoever feels inspired can bring a small dish\, snack\, appetizer\, or dessert to share – ideally something representative of their own culture or country—so we can all enjoy and discover flavors from around the world together.
URL:https://www.ift.uam-csic.es/event/world-day-for-cultural-diversity-celebration/
LOCATION:Cafeteria (ground floor)
CATEGORIES:Scientific culture
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260525T150000
DTEND;TZID=Europe/Madrid:20260525T160000
DTSTAMP:20260713T233123
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:20260526T140000
DTEND;TZID=Europe/Madrid:20260526T150000
DTSTAMP:20260713T233123
CREATED:20260406T091911Z
LAST-MODIFIED:20260406T092042Z
UID:24821-1779804000-1779807600@www.ift.uam-csic.es
SUMMARY:Cosmology Journal Club
DESCRIPTION:Every Tuesday at 2:00 PM in the discussion room on the 5th floor. \nJoin the IFT cosmology/gravity journal club at benty-fields.com to vote for papers and volunteer to present them
URL:https://www.ift.uam-csic.es/event/cosmology-journal-club-27/
LOCATION:Discussion room 5th floor\, C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, Madrid\, 28049\, Spain
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260528T120000
DTEND;TZID=Europe/Madrid:20260528T130000
DTSTAMP:20260713T233123
CREATED:20260525T061614Z
LAST-MODIFIED:20260525T061614Z
UID:25089-1779969600-1779973200@www.ift.uam-csic.es
SUMMARY:SPS Journal Club: Heterotic Ouroboros
DESCRIPTION:Strings\, Pheno and the Swampland (SPS) Journal Club \n\nTitle: Heterotic Ouroboros\n\nSpeaker: Chiara Altavista (IFT)\n\nVenue&Time: Red Room / 12:00\n\nAbstract: M-theory on {\mathbf{S}}^1\vee{\mathbf{S}}^1 has recently been proposed to yield\, via quotients\, ten-dimensional non-supersymmetric string theories. We revisit the construction that leads to the heterotic theories\, finding a consistent set of rules that reproduces the light spectra and gauge groups\, including indications of their global structure. Our approach uses the gauge enhancement mechanism of type I’ string theory\, applied to a setting in which the type I’ interval is curled onto itself\, with its two boundaries separated by a branch cut. Using these tools\, we reproduce the ten-dimensional heterotic theories and provide some evidence for junctions among them.
URL:https://www.ift.uam-csic.es/event/sps-journal-club-heterotic-ouroboros/
LOCATION:IFT Seminar Room/Red Room\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260528T120000
DTEND;TZID=Europe/Madrid:20260528T130000
DTSTAMP:20260713T233123
CREATED:20260525T061812Z
LAST-MODIFIED:20260525T061812Z
UID:25091-1779969600-1779973200@www.ift.uam-csic.es
SUMMARY:Pheno Journal Club
DESCRIPTION:Every Thursday at 12:00 in Grey Room 2.
URL:https://www.ift.uam-csic.es/event/pheno-journal-club-15/
LOCATION:Grey Room 2\, Instituto de Física Teórica\, Madrid\, Madrid\, 28037\, Spain
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260528T150000
DTEND;TZID=Europe/Madrid:20260528T160000
DTSTAMP:20260713T233123
CREATED:20260330T092531Z
LAST-MODIFIED:20260330T092531Z
UID:24676-1779980400-1779984000@www.ift.uam-csic.es
SUMMARY:Seminar by Marco Finetti (U. Aveiro)
DESCRIPTION:Title: ‘First Order Phase Transitions and Gravitational Waves’ \nVenue&Time: Red Room / 15:00 \nSpeaker: Marco Finetti (U. Aveiro) \nAbstract: The Laser Interferometer Space Antenna (LISA) will be the first space-based gravitational wave (GW) detector\, opening a new observational window for both astrophysics and early-Universe cosmology. Operating in the millihertz band\, it will probe a rich superposition of GW signals. Astrophysical population models predict a sufficient number of signals in the LISA band to blend together and form an irresolvable Galactic foreground noise. In addition\, a stochastic gravitational wave background (SGWB) of cosmological origin could add an unknown component to the measured noise. In this talk\, I will assess the bias induced on the parameter estimation of stochastic signals\, arising from the unresolved binaries buried within the cosmological signal. Using a representative SGWB model\, I will quantify the impact of this effect on the reconstruction of the foreground template parameters and\, most importantly\, on those of the SGWB model itself. Neglecting inter-template correlations can lead to significan biases\, and\, for several benchmark cases\, those biases exceed the statistical reconstruction uncertainties. These findings expose a key limitation of existing template-based strategies and indicate that unbiased component separation will likely require additional information\, such as constraints from resolved sources obtained through global-fit analyses.
URL:https://www.ift.uam-csic.es/event/seminar-by-marco-finetti-u-aveiro/
CATEGORIES:Scientific activities,Seminars
END:VEVENT
END:VCALENDAR