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PRODID:-//Instituto de Física Teórica - ECPv6.15.11//NONSGML v1.0//EN
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METHOD:PUBLISH
X-ORIGINAL-URL:https://www.ift.uam-csic.es
X-WR-CALDESC:Events for Instituto de Física Teórica
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X-Robots-Tag:noindex
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TZID:Europe/Madrid
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TZNAME:CEST
DTSTART:20240331T010000
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TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20241027T010000
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TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20250330T010000
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DTSTART:20251026T010000
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DTSTART:20260329T010000
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BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20251002T120000
DTEND;TZID=Europe/Madrid:20251002T130000
DTSTAMP:20260405T202228
CREATED:20250928T204751Z
LAST-MODIFIED:20251125T081259Z
UID:23072-1759406400-1759410000@www.ift.uam-csic.es
SUMMARY:SPS Journal Club: 'Landau-Ginzburg Models and Flux Vacua'
DESCRIPTION:Speaker: Muthusamy Rajaguru (IFT Madrid)\n\n\n\n\nVenue&Time: Red Room / 12:00 PM\n\n\n\nAbstract: In this talk\, I will give an overview of recent progress that has been made in constructing non-geometric flux vacua. In particular\, I will focus on type IIB string compactifications where the internal geometry is described by the 2^6 and 1^9 Landau-Ginzburg (LG) models. These LG models have no Kähler moduli and allow us to realize GKP-type vacua explicitly in the interior of the complex structure moduli space.  I will summarize the properties of these vacua and their implications for certain Swampland conjectures.\n\nRelevant literature – 2503.16599\, 2407.16756\, 2407.16758\, 2406.03435\, 2306.15714\, 2203.15818
URL:https://www.ift.uam-csic.es/event/sps-journal-club-landau-ginzburg-models-and-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:20251007T140000
DTEND;TZID=Europe/Madrid:20251007T150000
DTSTAMP:20260405T202228
CREATED:20251008T110638Z
LAST-MODIFIED:20251125T081259Z
UID:23275-1759845600-1759849200@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/
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:20251009T120000
DTEND;TZID=Europe/Madrid:20251009T130000
DTSTAMP:20260405T202228
CREATED:20251003T130507Z
LAST-MODIFIED:20251125T081258Z
UID:23246-1760011200-1760014800@www.ift.uam-csic.es
SUMMARY:SPS Journal Club: Symmetric Moduli Spaces\, the Swampland Distance Conjecture (...and the Emergent String Conjecture?)
DESCRIPTION:Speaker: Bernardo Fraiman (IFT)\n\n\nVenue&Time: Red Room / 12:00\n\n\nAbstract: For non-compact\, locally symmetric moduli spaces M\, the set of geodesics and the geometry of the boundary can be completely characterised using group theory. Under the assumption that M is “compactifiable” and some mild conditions on the spectrum of states\, we prove the SDC for all locally symmetric spaces. We show that the states necessarily transform in some representation of the local isometry group\, and that the convex hull encoding the exponential rate at which the leading tower of states becomes light coincides with the convex hull of the weights of the representation.\n\nIn this talk I will discuss briefly some aspects of the proof\, the domain of applicability of our assumptions and their limitations. If time permits\, I will also explain how the relation between towers and weights allows one to classify moduli spaces\, particle state representations and space time dimensions compatible with the Emergent String Conjecture. Based on 2508.18401 and work in progress.
URL:https://www.ift.uam-csic.es/event/sps-journal-club-symmetric-moduli-spaces-the-swampland-distance-conjecture-and-the-emergent-string-conjecture/
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:20251014T113000
DTEND;TZID=Europe/Madrid:20251014T130000
DTSTAMP:20260405T202228
CREATED:20251008T090655Z
LAST-MODIFIED:20251125T081258Z
UID:23262-1760441400-1760446800@www.ift.uam-csic.es
SUMMARY:Holo Club: Explicit Connections Between Krylov and Nielsen Complexity
DESCRIPTION:Speaker: Le-Chen Qu (IFT) \n\nVenue&Time: Grey Room 3 / 11:30 \n\nAbstract: We establish a precise correspondence between Krylov complexity and Nielsen complexity in quantum many-body systems. By identifying the Krylov basis with the generators of elementary gates in Nielsen’s geometric framework\, the Krylov complexity of precursor operators acquires a geometric interpretation as the length of straight-line paths in Nielsen geometry. This construction provides an upper bound on Nielsen complexity\, which becomes exact in the small-precursor limit. Employing the SYK model as a test case\, we demonstrate that the straight-line trajectory satisfies the Nielsen geodesic equation and remains both locally and globally minimizing up to a critical value of $z$\, beyond which conjugate points and geodesic loops arise. Within this framework\, cost functions quadratic in the Krylov index are further shown to reproduce the conjectured proportionality between the complexity growth rate and the operator size.
URL:https://www.ift.uam-csic.es/event/holo-club-explicit-connections-between-krylov-and-nielsen-complexity/
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:20251014T140000
DTEND;TZID=Europe/Madrid:20251014T150000
DTSTAMP:20260405T202228
CREATED:20251008T110737Z
LAST-MODIFIED:20251125T081258Z
UID:23278-1760450400-1760454000@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-2/
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:20251016T110000
DTEND;TZID=Europe/Madrid:20251016T120000
DTSTAMP:20260405T202228
CREATED:20251013T085555Z
LAST-MODIFIED:20251125T081258Z
UID:23315-1760612400-1760616000@www.ift.uam-csic.es
SUMMARY:Machine Learning and AI Journal Club
DESCRIPTION:Venue&Time: Grey Room 1
URL:https://www.ift.uam-csic.es/event/machine-learning-and-ai-journal-club/
LOCATION:Gray Room 1\, Instituto de Física Teórica\, C/ Nicolás Cabrera 13-15\, Cantoblanco\, Madrid\, Madrid\, 28049\, Spain
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20251016T120000
DTEND;TZID=Europe/Madrid:20251016T130000
DTSTAMP:20260405T202228
CREATED:20251009T103032Z
LAST-MODIFIED:20251125T081258Z
UID:23288-1760616000-1760619600@www.ift.uam-csic.es
SUMMARY:SPS Journal Club: 'Probing the Rigidity of String Theory'
DESCRIPTION:Speaker: Georgina Staudt (Max Planck Institute Munich) \n\nVenue&Time: Red Room / 12:00 \n\nAbstract: We investigate the deformability of the Veneziano amplitude. If string theory is the unique theory of quantum gravity\, the tree level amplitudes of weak coupling limits should be non-deformable. We make progress in this direction for tachyon-free superstring theories by deriving a general positivity bound and excluding some specific families of deformations.
URL:https://www.ift.uam-csic.es/event/sps-journal-club-probing-the-rigidity-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:20251016T170000
DTEND;TZID=Europe/Madrid:20251016T180000
DTSTAMP:20260405T202228
CREATED:20251010T103553Z
LAST-MODIFIED:20251125T081257Z
UID:23294-1760634000-1760637600@www.ift.uam-csic.es
SUMMARY:Old Journal Club: 'Renormalization and Effective Lagrangians'
DESCRIPTION:Pau Garcia Romeu (IFT) will present Renormalization and Effective Lagrangians by Joseph Polchinski.\n\nVenue&Time: Blue Room / 17:00\n\nAbstract:\n\nThere is a strong intuitive understanding of renormalization\, due to Wilson\, in terms of the scaling of effective lagrangians. We show that this can be made the basis for a proof of perturbative renormalization. We first study renormalizability in the language of renormalization group flows for a toy renormalization group equation. We then derive an exact renormalization group equation for a four-dimensional λø 4 theory with a momentum cutoff. We organize the cutoff dependence of the effective lagrangian into relevant and irrelevant parts\, and derive a linear equation for the irrelevant part. A lengthy but straightforward argument establishes that the piece identified as irrelevant actually is so in perturbation theory. This implies renormalizability. The method extends immediately to any system in which a momentum-space cutoff can be used\, but the principle is more general and should apply for any physical cutoff. Neither Weinberg’s theorem nor arguments based on the topology of graphs are needed.\n\nMore info: https://inspirehep.net/literature/189574
URL:https://www.ift.uam-csic.es/event/old-journal-club-renormalization-and-effective-lagrangians/
LOCATION:Blue Room\, Instituto de Física Teórica (IFT) - C. Nicolás Cabrera\, 13-15\, Fuencarral-El Pardo\, Madrid\, 28049\,\, Spain
CATEGORIES:Journal clubs,Scientific activities
ATTACH;FMTTYPE=image/png:https://www.ift.uam-csic.es/wp-content/uploads/2025/10/OJC_Pau.png
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20251021T140000
DTEND;TZID=Europe/Madrid:20251021T150000
DTSTAMP:20260405T202229
CREATED:20251020T062859Z
LAST-MODIFIED:20251125T081104Z
UID:23385-1761055200-1761058800@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-3/
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:20251021T150000
DTEND;TZID=Europe/Madrid:20251021T160000
DTSTAMP:20260405T202229
CREATED:20251020T062512Z
LAST-MODIFIED:20251125T081104Z
UID:23383-1761058800-1761062400@www.ift.uam-csic.es
SUMMARY:Pheno Journal Club: Coherently enhanced decoherence and cloud substructure of atom interferometers
DESCRIPTION:Speaker: Pablo Blanco Mas (IFT)\n\n\n\n\n\n\n\n\nVenue & Time: Grey Room 3 / 15:00\n\nAbstract: We study how coherent scattering of a background gas off an atom (or other matter) interferometer can lead to enhanced signals from phase shifts and contrast loss. We focus on the inclusion of realistic features of atom interferometers such as finite temperature\, cloud substructure\, and time-dependent cloud radii. The inclusion of these effects\, extending beyond the previously considered point-like cloud approximation\, naturally allow us to study the smooth transition between the coherent and incoherent scattering regimes. We discuss how the formalism presented herein can be tested in the laboratory (with near-infrared photons or an eV-scale electron gun)\, and discuss an application for the detection of dark matter interacting via long-range forces.
URL:https://www.ift.uam-csic.es/event/pheno-journal-club-coherently-enhanced-decoherence-and-cloud-substructure-of-atom-interferometers/
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:20251023T120000
DTEND;TZID=Europe/Madrid:20251023T130000
DTSTAMP:20260405T202229
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
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20251023T150000
DTEND;TZID=Europe/Madrid:20251023T160000
DTSTAMP:20260405T202229
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:20251028T140000
DTEND;TZID=Europe/Madrid:20251028T150000
DTSTAMP:20260405T202229
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:20251028T150000
DTEND;TZID=Europe/Madrid:20251028T160000
DTSTAMP:20260405T202229
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:20251029T113000
DTEND;TZID=Europe/Madrid:20251029T123000
DTSTAMP:20260405T202229
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:20251030T120000
DTEND;TZID=Europe/Madrid:20251030T130000
DTSTAMP:20260405T202229
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/
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20251030T170000
DTEND;TZID=Europe/Madrid:20251030T180000
DTSTAMP:20260405T202229
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
END:VCALENDAR