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X-WR-CALDESC:Events for Instituto de Física Teórica
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BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260122T120000
DTEND;TZID=Europe/Madrid:20260122T130000
DTSTAMP:20260722T115512
CREATED:20260116T122902Z
LAST-MODIFIED:20260116T123748Z
UID:24200-1769083200-1769086800@www.ift.uam-csic.es
SUMMARY:SPS Journal Club: 'K-Points and Type IIB/Heterotic Duality with NS5-Branes'
DESCRIPTION:Speaker: Lorenzo Paoloni (IFT) \nVenue & Time: Red Room / 12:00 \nAbstract: We revisit type II_0 limits in the vector multiplet moduli space of compactifications of Type IIB string theory on Calabi-Yau threefolds. These limits are special because they cannot be described using mirror symmetry. While we showed in previous work that the gravitational duality frame emerging in such limits corresponds to a weakly coupled heterotic string compactified on K3 times a string-sized torus\, our focus here is on the additional field theory sectors that decouple from gravity in these asymptotic regimes. Concretely\, we argue that\, in the dual heterotic description\, these field theory sectors correspond to spacetime-filling NS5-branes wrapping the heterotic torus. The existence of such non-perturbative field theory sectors manifests itself in an exponential dependence of the prepotential on the heterotic dilaton at leading order. Applied to K-point limits in one-parameter moduli spaces\, our results imply that these limits are in perfect agreement with the Distance and Emergent String Conjectures. More precisely\, the light tower of states predicted by the Distance Conjecture arises from excitations of a weakly coupled heterotic string compactified to four dimensions on a background containing spacetime-filling NS5-branes.
URL:https://www.ift.uam-csic.es/event/sps-journal-club-k-points-and-type-iib-heterotic-duality-with-ns5-branes/
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
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260120T140000
DTEND;TZID=Europe/Madrid:20260120T150000
DTSTAMP:20260722T115512
CREATED:20260116T125647Z
LAST-MODIFIED:20260116T125647Z
UID:24212-1768917600-1768921200@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-10/
LOCATION:Discussion room 5th floor\, C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, Madrid\, 28049\, Spain
CATEGORIES:Journal clubs
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20260115T120000
DTEND;TZID=Europe/Madrid:20260115T130000
DTSTAMP:20260722T115512
CREATED:20260108T235522Z
LAST-MODIFIED:20260112T110919Z
UID:24173-1768478400-1768482000@www.ift.uam-csic.es
SUMMARY:Pheno Journal Club: 'Bubble velocities in local equilibrium from a pseudopotential'
DESCRIPTION:Speaker: Eric Madge\, IFT \nVenue&Time: 12:00 / Grey room 3 \nAbstract: We present a new method to estimate terminal bubble velocities during first-order phase transitions in a plasma in local equilibrium. The method relies on calculating the extrema of a modified potential function for the scalar field undergoing the transition. The shape of this function\, which we refer to as the “pseudopotential”\, changes with the wall velocity\, and if the dependence of the fluid temperature on scalar gradients is weak—which is confirmed to hold with high accuracy in concrete examples—the difference in pseudopotential between two appropriate extrema gives the net outward pressure acting on the bubble wall. It then follows that the correct terminal bubble velocities are those that lead to degenerate minima in the pseudopotential. This allows to compute bubble velocities without having to solve the equation of motion of the scalar field\, and in contrast to other methods this can be done without relying on simplified equations of state for the plasma or without choosing a specific ansatz for the scalar field profile. We illustrate the method in a singlet extension of the Standard Model\, computing the net outward pressure as a function of the wall velocity. We confirm the dip in outward pressure found in the literature for hybrid bubbles\, which implies that stationary deflagrations are stable\, while their detonation counterparts are unstable
URL:https://www.ift.uam-csic.es/event/pheno-journal-club-bubble-velocities-in-local-equilibrium-from-a-pseudopotential/
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:20260115T120000
DTEND;TZID=Europe/Madrid:20260115T130000
DTSTAMP:20260722T115512
CREATED:20260108T233656Z
LAST-MODIFIED:20260109T064725Z
UID:24167-1768478400-1768482000@www.ift.uam-csic.es
SUMMARY:SPS Journal Club: 'Exotic Branes and Symmetries of String Theory'
DESCRIPTION:Speaker: Andriana Makridou (IFT) \nVenue & Time: Red Room / 12:00 \nAbstract: Are duality transformations symmetries of string theory? For AdS space-time the answer is\nno for generic asymptotic values of the moduli\, since the duality symmetry is broken explicitly\nin the dual conformal field theory. In contrast\, in string theory in flat space-time\, monodromy\naround codimension two exotic branes show that duality transformations are spontaneously\nbroken discrete gauge symmetries with observable consequences\, provided macroscopic loops\nof these branes are not hidden behind an event horizon. We discuss how this can be achieved\nand how the situation in flat space-time differs from that in AdS space-time. We also discuss\nobservability of codimension two non-BPS branes and codimension one BPS and non-BPS\nbranes. Based on [2512.19068].
URL:https://www.ift.uam-csic.es/event/sps-journal-club-exotic-branes-and-symmetries-of-string-theory/
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:20251216T150000
DTEND;TZID=Europe/Madrid:20251216T160000
DTSTAMP:20260722T115512
CREATED:20251212T150514Z
LAST-MODIFIED:20251218T085316Z
UID:24132-1765897200-1765900800@www.ift.uam-csic.es
SUMMARY:Pheno Journal Club: 'How large can lepton mixing be?'
DESCRIPTION:Speaker: Sergio Rodríguez Benítez (IFT) \nVenue & Time: Grey Room 3 / 15:00 \nAbstract: We show that\, contrary to common expectations\, the observed charged leptons can have a substantial mixing with new heavier fermions\, at the level of 20%. This can happen\, in the language of effective theories\, when the effect of mixing with heavier fermions vanishes at tree level in operators of mass-dimension 6 (or it is suppressed by the small charged lepton masses)\, a cancellation that can be naturally ensured by symmetries. Using a model that realizes this scenario we consider all current direct and indirect constraints and show that experimental constraints on the mixing are so mild that\, given the current direct limit on the mass of the heavy fermions\, theoretical considerations become the leading current constraints on the mixing. We also estimate the sensitivity to the mixing at future experiments\, including the high-luminosity phase of the LHC and\, most notably\, the FCCee\, and FCC-hh. We find a pattern in which the reach of direct searches in hadron machines makes theoretical considerations lead the limits while the precision of lepton machines can beat these theoretical considerations. We find that the FCC can finally reach per milleprecision in the mixing squared of the charged leptons. \n 
URL:https://www.ift.uam-csic.es/event/pheno-journal-club-how-large-can-lepton-mixing-be/
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:20251204T170000
DTEND;TZID=Europe/Madrid:20251204T180000
DTSTAMP:20260722T115512
CREATED:20251128T155727Z
LAST-MODIFIED:20251128T160503Z
UID:23979-1764867600-1764871200@www.ift.uam-csic.es
SUMMARY:Old Journal Club: 'Field Theories with Superconductor Solutions'
DESCRIPTION:Lorenzo Paoloni (IFT) will present :“Field Theories with Superconductor Solutions”\, Nuovo Cim. 19 (1961) 154–164 de J. Goldstone. \nVenue & Time: Blue Room / 17:00 \n \nAbstract: The conditions for the existence of non-perturbative type « superconductor » solutions of field theories are examined. A non-covariant canonical transformation method is used to find such solutions for a theory of a fermion interacting with a pseudoscalar boson. A covariant renormalisable method using Feynman integrals is then given. A « superconductor » solution is found whenever in the normal perturbative-type solution the boson mass squared is negative and the coupling constants satisfy certain inequalities. The symmetry properties of such solutions are examined with the aid of a simple model of self-interacting boson fields. The solutions have lower symmetry than the Lagrangian\, and contain mass zero bosons. \nMore info: https://inspirehep.net/literature/12289
URL:https://www.ift.uam-csic.es/event/old-journal-club-field-theories-with-superconductor-solutions/
LOCATION:Blue Room\, Instituto de Física Teórica (IFT) - C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Journal clubs
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20251204T120000
DTEND;TZID=Europe/Madrid:20251204T130000
DTSTAMP:20260722T115512
CREATED:20251128T160428Z
LAST-MODIFIED:20251128T160523Z
UID:23984-1764849600-1764853200@www.ift.uam-csic.es
SUMMARY:SPS Journal Club: 'On the K-point in moduli space'
DESCRIPTION:Speaker: Alessandra Grieco (IFT)\n\nVenue & Time: Red Room / 12:00\n\nAbstract: We study a class of infinite-distance loci\, referred to as K-points\, in one-parameter complex-structure moduli spaces of type IIB string theory compactified on Calabi-Yau manifolds. We show that around K-points the effective four-dimensional supergravity exhibits certain unusual properties. The two most prominent being that the leading order dependence of the prepotential on the gauge couplings is non-perturbative and that the leading gauge kinetic terms in the action vanish when evaluated on an anti self-dual graviphoton background. These properties are shared with the conifold locus in moduli space\, rather than the large complex-structure locus. The conifold locus is well-known to arise from integrating out a charged BPS state\, and so the similarities suggest that the K-point also arises from integrating out a BPS state. We develop such an interpretation\, finding that it corresponds to a BPS state which is extremely light\, whose mass in Planck units is doubly-exponentially small in the distance to the K-point. The state behaves as if it had complex charges\, or as if it couples to the self-dual and anti self-dual parts of the graviphoton differently. Assuming such an integrating-out scenario is indeed the correct physics for the K-point\, we discuss the implications for our understanding of infinite distances in moduli space and for the Swampland Distance Conjecture.
URL:https://www.ift.uam-csic.es/event/sps-journal-club-on-the-k-point-in-moduli-space/
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
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20251203T113000
DTEND;TZID=Europe/Madrid:20251203T123000
DTSTAMP:20260722T115512
CREATED:20251128T170554Z
LAST-MODIFIED:20251218T085316Z
UID:23993-1764761400-1764765000@www.ift.uam-csic.es
SUMMARY:Quantum Information Journal Club: 'Programming quantum matter made with light and atoms'
DESCRIPTION:Speaker: Cristian Tabares \n\nVenue & Time: 11:30 / Gray Room 3 \n\nAbstract: Current experimental quantum devices do not yet meet the requirements for building fault-tolerant quantum computers\, but they can still be used to address many-body problems as analogue quantum simulators. Furthermore\, recent experimental advances [1-4] are enabling these simulators to operate in a programmable manner [5]\, where their dynamics can be used as resources to generate a set of (non-universal) quantum gates. These controllable systems are able to generate highly entangled states\, but a natural question is how to use these resources for quantum simulation purposes.\n\n\nIn this seminar we will discuss two different approaches. The first one will be based on state preparation\, demonstrating how a classical device can be used to assist the analogue quantum simulator in the task of many-body state preparation [6\,7] with variational algorithms. We will focus on fermionic atoms in optical lattices [8]\, constructing for ground-state preparation of local and extended Fermi-Hubbard models that show considerable improvements with respect to equivalent adiabatic methods. Then\, in the second part of the talk\, we will introduce an algorithm specifically tailored for analog quantum simulators to accurately recover their ground state properties [9]. Using only global time evolution under a target Hamiltonian\, our algorithm avoids the need for local control that is typically required in conventional quantum phase estimation.\n\n\nThese results provide programmable quantum simulators with a new set of tools that further leverage their current capabilities. Overall\, our work opens new avenues for analog simulators to make a wider and more efficient exploration of their relevant many-body Hilbert space.\n\n\n\n[1] X. Zhang et al.\, Science 379\, 278-283 (2023). \n[2] C. Kokail et al.\, Nature 569\, 355–360 (2019). \n[3] S. Ebadi et al.\, Nature 595\, 227–232 (2021). \n[4] D. Bourgund et al.\, Nature 637\, 57–62 (2025). \n[5] A. J. Daley et al.\, Nature 607\, 667–676 (2022). \n[6] C. Tabares\, A. Muñoz de las Heras\, L. Tagliacozzo\, D. Porras\, and A. González-Tudela\, Phys. Rev. Lett. 131\, 073602 (2023). \n[7] A. Muñoz de las Heras\, C. Tabares\, J. Schneider\, L. Tagliacozzo\, D. Porras\, and A. González-Tudela.\, Phys. Rev. Research 6\, 013299 (2024). \n[8] C. Tabares\, C. Kokail\, P. Zoller\, D. González-Cuadra and A. González-Tudela\, PRX Quantum 6\, 030356 (2025). \n[9] C. Tabares\, D. S. Wild\, J. I. Cirac\, P. Zoller\, A. Gonzalez-Tudela\, and D. González-Cuadra\, arXiv:2511.04434 (2025).
URL:https://www.ift.uam-csic.es/event/quantum-information-journal-club-programming-quantum-matter-made-with-light-and-atoms/
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:20251202T150000
DTEND;TZID=Europe/Madrid:20251202T160000
DTSTAMP:20260722T115512
CREATED:20251128T160718Z
LAST-MODIFIED:20251128T160718Z
UID:23989-1764687600-1764691200@www.ift.uam-csic.es
SUMMARY:Pheno Journal Club
DESCRIPTION:Every Tuesday at 15:00 in Grey Room 3.
URL:https://www.ift.uam-csic.es/event/pheno-journal-club-4/
LOCATION:Gray Room 3\, Instituto de Física Teórica (IFT) -C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Journal clubs
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20251202T140000
DTEND;TZID=Europe/Madrid:20251202T150000
DTSTAMP:20260722T115512
CREATED:20251128T160842Z
LAST-MODIFIED:20251128T160842Z
UID:23991-1764684000-1764687600@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-9/
LOCATION:Discussion room 5th floor\, C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, Madrid\, 28049\, Spain
CATEGORIES:Journal clubs
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20251202T113000
DTEND;TZID=Europe/Madrid:20251202T130000
DTSTAMP:20260722T115512
CREATED:20251107T120803Z
LAST-MODIFIED:20251125T081101Z
UID:23693-1764675000-1764680400@www.ift.uam-csic.es
SUMMARY:Holo Club: 'Complexity equals anything for multi-horizon black holes'
DESCRIPTION:Speaker: Hong-Yue Jiang (Lanzhou University) \nVenue&Time: 11:30 / Gray Room 3 \nAbstract: We investigate the “complexity equals anything” proposal with codimension-one and codimension-zero gravitational observables for multi-horizon black holes\, using the Bardeen-AdS class black hole as an example. In particular\, we compare the results with the “complexity equals volume” (CV) proposal and find that the generalized volume complexitiy enables the probing of a more complete black hole interior\, that is\, all spacetime regions where the blackening factor $f(r)<0$. This is the advantage brought by the flexibility of this holographic complexity conjecture. In addition\, we compute the codimension-zero gravitational observables derived from various geometric quantities and show that these constructions can effectively differentiate the distinct interior regions of the black hole.
URL:https://www.ift.uam-csic.es/event/holo-club-complexity-equals-anything-for-multi-horizon-black-holes/
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:20251127T120000
DTEND;TZID=Europe/Madrid:20251127T130000
DTSTAMP:20260722T115512
CREATED:20251121T123840Z
LAST-MODIFIED:20251218T085316Z
UID:23879-1764244800-1764248400@www.ift.uam-csic.es
SUMMARY:String\, Pheno and the Swampland Journal Club: 'Anomaly-induced vanishing of brane partition functions'
DESCRIPTION:Speaker: Michelangelo Tartaglia (IFT) \nVenue & Time: Red Room / 12:00 \nAbstract: In the presence of ‘t Hooft anomalies\, backgrounds for the symmetries of a quantum field theory can lead to non-conservation of Noether currents\, or more generally\, to the presence of charged insertions in the path integral. When there is a net background charge\, the partition function evaluated on closed manifolds will vanish. For anomalous symmetries\, this statement can also be understood as the anomaly theory giving rise to a non-trivial anomalous phase for the partition function even for “rigid” transformations which leave all background fields unchanged. We use the generalisation of this second viewpoint to the setting of anomalous higher-form symmetries in order to show vanishing of the partition function for a number of examples\, both with and without a Lagrangian description. In particular\, we show how to derive from these considerations the analogue of the Freed-Witten anomaly cancellation condition for the M5-brane\, and also that for the D3-brane in S-fold backgrounds.
URL:https://www.ift.uam-csic.es/event/string-pheno-and-the-swampland-journal-club/
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:20251125T150000
DTEND;TZID=Europe/Madrid:20251125T160000
DTSTAMP:20260722T115512
CREATED:20251121T122546Z
LAST-MODIFIED:20251218T085316Z
UID:23871-1764082800-1764086400@www.ift.uam-csic.es
SUMMARY:Pheno Journal Club: 'Is the Strong CP Problem Really a Problem?'
DESCRIPTION:Speaker: Giulio Barni (IFT) \nVenue & Time: 14:30 – 15:30 \nAbstract: The vanishingly small value of the QCD θ-angle inferred from neutron EDM bounds is usually taken as evidence for the Strong CP Problem\, prompting a wide range of proposed solutions. In this talk\, I will first review what the Strong CP Problem is: why a generic θ term in QCD leads to large CP violation\, and how current experiments force θ ≲ 10e-10. I will then summarize the main solution strategies\, including the Peccei–Quinn axion\, parity- or CP-based models\, and other less conventional ideas. The second part of the talk will focus on a more conceptual question raised in recent years: does the Strong CP Problem actually exist\, or could θ be unphysical once confinement and the full structure of QCD are properly taken into account? Building on the recent analysis of Benabou\, Hook\, Manzari\, Murayama and Safdi (arXiv:2510.18951)\, I will discuss this debate\, highlighting what lattice QCD teaches us about θ-dependence\, topological sectors\, and the neutron EDM.
URL:https://www.ift.uam-csic.es/event/pheno-journal-club-3/
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:20251125T140000
DTEND;TZID=Europe/Madrid:20251125T150000
DTSTAMP:20260722T115512
CREATED:20251119T133354Z
LAST-MODIFIED:20251218T085316Z
UID:23777-1764079200-1764082800@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-8/
LOCATION:Madrid
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20251120T173000
DTEND;TZID=Europe/Madrid:20251120T183000
DTSTAMP:20260722T115512
CREATED:20251119T125326Z
LAST-MODIFIED:20251218T085316Z
UID:23764-1763659800-1763663400@www.ift.uam-csic.es
SUMMARY:Old Journal Club en la Facultad: "Rotura de simetría y mecanismo de Higgs"
DESCRIPTION:Speaker: Marta F. Zamoro (IFT) \nVenue & Time: Aula M15-201. Facultad de Ciencias\, UAM / 17:30
URL:https://www.ift.uam-csic.es/event/old-journal-club-en-la-facultad-rotura-de-simetria-y-mecanismo-de-higgs/
LOCATION:Madrid
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20251120T120000
DTEND;TZID=Europe/Madrid:20251120T130000
DTSTAMP:20260722T115512
CREATED:20251114T123122Z
LAST-MODIFIED:20251125T083854Z
UID:23742-1763640000-1763643600@www.ift.uam-csic.es
SUMMARY:SPS Journal Club: 'Flux Backtracking and Decoupling of Scale Separated AdS Vacua'
DESCRIPTION:Speaker: Fien Apers (IFT) \nVenue & Time: Red Room / 12:00 \nAbstract: I will explain how the flux backtracking method (https://arxiv.org/pdf/2506.03314) can be used to reconstruct the D-brane configuration whose near-horizon region realises the DGKT vacua. As an application\, I will show how this reconstructed geometry allows one to verify whether the corresponding D-brane theory decouples from bulk gravity.
URL:https://www.ift.uam-csic.es/event/sps-journal-club-flux-backtracking-and-decoupling-of-scale-separated-ads-vacua/
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:20251118T150000
DTEND;TZID=Europe/Madrid:20251118T160000
DTSTAMP:20260722T115512
CREATED:20251114T122654Z
LAST-MODIFIED:20251125T082401Z
UID:23740-1763478000-1763481600@www.ift.uam-csic.es
SUMMARY:Pheno Journal Club
DESCRIPTION:Every Tuesday at 15:00 in Grey Room 3.
URL:https://www.ift.uam-csic.es/event/pheno-journal-club-2/
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:20251118T140000
DTEND;TZID=Europe/Madrid:20251118T150000
DTSTAMP:20260722T115512
CREATED:20251114T122519Z
LAST-MODIFIED:20251125T081102Z
UID:23738-1763474400-1763478000@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-7/
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:20251113T120000
DTEND;TZID=Europe/Madrid:20251113T130000
DTSTAMP:20260722T115512
CREATED:20251107T121058Z
LAST-MODIFIED:20251125T083153Z
UID:23695-1763035200-1763038800@www.ift.uam-csic.es
SUMMARY:SPS Journal Club: Holographic constraints on AdS flux vacua
DESCRIPTION:Speaker: Antonia Paraskevopoulou (Munich\, Max Planck Inst. and LMU Munich) \nVenue & Time: Red Room / 12:00 \nAbstract: In this talk\, I will argue that the covariant entropy bound poses non-trivial restrictions on anti-de Sitter(AdS) flux vacua. After motivating the bound on AdS\, we will see how it naturally arises in the context of the supergravity equations of motion\, based on some reasonable assumptions. In four dimensions\, we argue that the bound suggests a lower bound on the superpotential\, as we will verify in examples. Based on work in progress with N. Cribiori and T. Van Riet.
URL:https://www.ift.uam-csic.es/event/sps-journal-club-holographic-constraints-on-ads-flux-vacua/
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:20251111T140000
DTEND;TZID=Europe/Madrid:20251111T150000
DTSTAMP:20260722T115512
CREATED:20251107T123529Z
LAST-MODIFIED:20251125T081102Z
UID:23699-1762869600-1762873200@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-6/
LOCATION:Madrid
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20251106T110000
DTEND;TZID=Europe/Madrid:20251106T120000
DTSTAMP:20260722T115512
CREATED:20251029T142950Z
LAST-MODIFIED:20251125T081102Z
UID:23524-1762426800-1762430400@www.ift.uam-csic.es
SUMMARY:Machine Learning Journal Club: 'Hierarchical Simulation-Based Inference of Supernova Physics'
DESCRIPTION:Speaker: Alex Gagliano (IAIFI/MIT) \nVenue&Time: 11:00 / Grey Room 2 \nAbsrtact: Supernovae are powered by diverse physical mechanisms such as radioactive decay\, circumstellar interaction\, and magnetar spin-down\, but distinguishing among them from light curves alone remains a major challenge. In this talk\, I’ll present a hierarchical simulation-based inference framework that jointly infers both the dominant power source and the key physical parameters of supernovae. By training conditional neural density estimators end-to-end across multiple physical models\, this approach yields calibrated posteriors even in regions of strong degeneracy. I’ll highlight the model’s performance on synthetic data and outline plans to fine-tune the model for population-level studies of diverse explosion physics.
URL:https://www.ift.uam-csic.es/event/machine-learning-journal-club/
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:20251104T140000
DTEND;TZID=Europe/Madrid:20251104T150000
DTSTAMP:20260722T115512
CREATED:20251030T151849Z
LAST-MODIFIED:20251125T081102Z
UID:23644-1762264800-1762268400@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-5/
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:20251104T113000
DTEND;TZID=Europe/Madrid:20251104T130000
DTSTAMP:20260722T115512
CREATED:20251029T111645Z
LAST-MODIFIED:20251125T081103Z
UID:23514-1762255800-1762261200@www.ift.uam-csic.es
SUMMARY:HoloClub: 'N=1 Supergravity from Super Virasoro TQFT'
DESCRIPTION:Speaker: Sounak Pal (Indian Institute of Technology) \nVenue&Time: Grey Room 3 / 11:30 \nAbstract: I will discuss some aspects of 2D and 3D quantum gravity in\nthe language of Topological quantum field theory (TQFT). Recent\ndevelopments include calculating various gravity partition functions\nin AdS3 using descriptions of Liouville conformal field theory (CFT).\nWe extend this formalism for the N=1 super Liouville case and use\nsuper-Teichmüller TQFT to compute various partition functions of\ndifferent on-shell manifolds (admitting a hyperbolic metric with\nconstant negative Ricci scalar). I will also touch upon some aspects\nof quantum chaos and ensemble holography. I will also discuss some\npossible future extensions at the end.
URL:https://www.ift.uam-csic.es/event/holoclub-n1-supergravity-from-super-virasoro-tqft/
LOCATION:Madrid
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20251030T170000
DTEND;TZID=Europe/Madrid:20251030T180000
DTSTAMP:20260722T115512
CREATED:20251024T105035Z
LAST-MODIFIED:20251125T080704Z
UID:23439-1761843600-1761847200@www.ift.uam-csic.es
SUMMARY:Old Journal Club: Neutrino Masses and Mixings in Gauge Models with Spontaneous Parity Violation
DESCRIPTION:Pablo Blanco (IFT) will present Neutrino Masses and Mixings in Gauge Models with Spontaneous Parity Violation de Rabindra N. Mohapatra\, Goran Senjanovic\, Jul\, 1980 Phys.Rev.D 23 (1981) 165. \nAbstract: \nUnified electroweak gauge theories based on the gauge group SU(2)L×SU(2)R×U(1)B−L\, in which the breakdown of parity invariance is spontaneous\, lead most naturally to a massive neutrino. Assuming the neutrino to be a Majorana particle\, we show that smallness of its mass can be understood as a result of the observed maximality of parity violation in low-energy weak interactions. This result is shown to be independent of the number of generations and unaffected by renormalization effects. Phenomenological consequences of this model at low energies are studied. Observation of neutrinoless double-β decay will provide a crucial test of this class of models. Implications for rare decays such as μ→eγ\, μ→eee¯\, etc. are also noted. It is pointed out that in the realm of neutral-current phenomena\, departure from the predictions of the standard model for polarized-electron-hadron scattering\, forward-backward asymmetry in e+e−→μ+μ−\, and neutrino interactions has a universal character and may be therefore used as a test of the model.
URL:https://www.ift.uam-csic.es/event/old-journal-club-neutrino-masses-and-mixings-in-gauge-models-with-spontaneous-parity-violation/
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:20251030T120000
DTEND;TZID=Europe/Madrid:20251030T130000
DTSTAMP:20260722T115512
CREATED:20251024T105840Z
LAST-MODIFIED:20251125T081103Z
UID:23444-1761825600-1761829200@www.ift.uam-csic.es
SUMMARY:SPS Journal Club: Weak Gravity and Perturbative Black Holes
DESCRIPTION:Speaker: Matteo Lotito (IFT) \nVenue&Time: Red Room / 12:00 \nAbstract: \nI present a brief summary of the derivation of the Weak Gravity Conjecture within perturbative string theory\, following [2403.14449]\, and highlight possible gaps that may hinder a fully consistent proof. I then analyze the existence and properties of the black hole solutions whose extremality bounds are compared to the string spectrum in the statement of the WGC. This analysis demonstrates that the black hole solutions we employ in our setup are reliable and do not undermine the validity of our results. \n 
URL:https://www.ift.uam-csic.es/event/sps-journal-club-weak-gravity-and-perturbative-black-holes/
LOCATION:Madrid
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20251029T113000
DTEND;TZID=Europe/Madrid:20251029T123000
DTSTAMP:20260722T115512
CREATED:20251027T120215Z
LAST-MODIFIED:20251125T081103Z
UID:23487-1761737400-1761741000@www.ift.uam-csic.es
SUMMARY:Quantum Information Journal Club: Randomized truncation
DESCRIPTION:Speaker: Aram Harrow (MIT) \nVenue&Time: Grey Room 3 / 11:30 \nAbstract: Given a vector v\, what is the closest k-sparse vector? The answer to this question is usually that we should take the largest k entries of v. It turns out that we can do better with randomized approximations. When approximating pure bipartite entangled states with states of low Schmidt rank\, this means that mixed approximations outperform pure approximations. This fact has application to classical algorithms for matrix product states by improving the truncation step\, and to quantum algorithms for Hamiltonian simulation.\nJoint work with Angus Lowe and Freek Witteveen. \nhttps://arxiv.org/abs/2510.08518
URL:https://www.ift.uam-csic.es/event/quantum-information-journal-club-randomized-truncation-2/
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:20251028T150000
DTEND;TZID=Europe/Madrid:20251028T160000
DTSTAMP:20260722T115512
CREATED:20251024T110503Z
LAST-MODIFIED:20251125T081103Z
UID:23448-1761663600-1761667200@www.ift.uam-csic.es
SUMMARY:Pheno Journal Club
DESCRIPTION:Every Tuesday at 15:00 in Grey Room 3.
URL:https://www.ift.uam-csic.es/event/pheno-journal-club/
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:20251028T140000
DTEND;TZID=Europe/Madrid:20251028T150000
DTSTAMP:20260722T115512
CREATED:20251024T110633Z
LAST-MODIFIED:20251125T081103Z
UID:23450-1761660000-1761663600@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-4/
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:20251023T150000
DTEND;TZID=Europe/Madrid:20251023T160000
DTSTAMP:20260722T115512
CREATED:20251008T091234Z
LAST-MODIFIED:20251125T081103Z
UID:23267-1761231600-1761235200@www.ift.uam-csic.es
SUMMARY:Bubble wall dynamics from nonequilibrium quantum field theory
DESCRIPTION:Speaker: Matthias Carosi from Munich\, Tech. U.\n\n\n\n\n\n\n\n\nVenue & Time: Red Room / 15:00\n\nAbstract:\n\n\n\nFirst-order phase transitions in the early universe are a unique probe of physics beyond the Standard Model\, with potential implications for electroweak baryogenesis\, the formation of primordial black holes\, magnetogenesis and the production of dark matter. Upcoming gravitational wave detectors may capture the imprint of such transitions\, but to extract theoretical insights from these signals requires a precise understanding of the underlyingdynamics.\nIn this talk\, I show how the language of nonequilibrium quantum field theory\, combined with the two-particle-irreducible effective action\, provides anatural framework for describing the dynamics of a bubble after nucleation. After a brief introduction to the closed-time-path formalism\, I derive the dynamical equations governing the bubble and the plasma\, and identify all sources of friction for thebubble expansion. This framework unifies the pre-existing approaches within a single\, consistent description. In the ultrarelativistic regime\, I demonstrate how to compute the friction induced by the pair production of heavy scalar particles and outline the contributions of particle mixing andtransition radiation.
URL:https://www.ift.uam-csic.es/event/seminar-by-matthias-carosi/
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:20251023T120000
DTEND;TZID=Europe/Madrid:20251023T130000
DTSTAMP:20260722T115512
CREATED:20251020T062308Z
LAST-MODIFIED:20251125T081103Z
UID:23380-1761220800-1761224400@www.ift.uam-csic.es
SUMMARY:SPS Journal Club: Inflationary Particle Production and the Swampland
DESCRIPTION:Speaker: Joaquin Masias (Munich\, Max Planck Institute) \nVenue&Time: Red Room / 12:00 PM \nAbstract: TBA
URL:https://www.ift.uam-csic.es/event/sps-journal-club-inflationary-particle-production-and-the-swampland/
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
END:VCALENDAR