BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Instituto de Física Teórica - ECPv6.15.11//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-ORIGINAL-URL:https://www.ift.uam-csic.es
X-WR-CALDESC:Events for Instituto de Física Teórica
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:Europe/Madrid
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20250330T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20251026T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20260329T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20261025T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20270328T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20271031T010000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20261006T140000
DTEND;TZID=Europe/Madrid:20261006T150000
DTSTAMP:20261106T055958
CREATED:20260930T125442Z
LAST-MODIFIED:20260930T125442Z
UID:25767-1791295200-1791298800@www.ift.uam-csic.es
SUMMARY:Cosmology Journal Club
DESCRIPTION:Every Tuesday at 2:00 PM in the discussion room on the 5th floor.\n\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-30/
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:20261013T113000
DTEND;TZID=Europe/Madrid:20261013T123000
DTSTAMP:20261106T055958
CREATED:20261007T110148Z
LAST-MODIFIED:20261007T110148Z
UID:25822-1791891000-1791894600@www.ift.uam-csic.es
SUMMARY:Holo-Club: Lanczos Meets Orthogonal Polynomials
DESCRIPTION:Title: Lanczos Meets Orthogonal Polynomials \nSpeaker: Le-Chen Qu \nVenue & Time: 11:30 / Red Room \nAbstract: In this talk\, I will explain the connection between the Lanczos algorithm and orthogonal polynomials and its application to spread complexity in large-$N$ random matrix models. The three-term recurrence relation for orthogonal polynomials has the same structure as the Lanczos recursion\, allowing the polynomial recursion coefficients to be identified with the Lanczos coefficients. For an infinite-temperature thermofield double state\, equations for these coefficients follow from the Coulomb-gas equation. In one-cut matrix models\, the Lanczos coefficients approach constants at large Krylov index\, leading to linear growth of spread complexity at late times. A Bloch-wave analysis expresses the asymptotic growth rate as a spectral average of the group velocity. For even potentials\, differences between consecutive squared Lanczos coefficients also admit a geometric interpretation as generating functions for planar maps whose marked legs are separated by a fixed geodesic distance. Quartic matrix models and the double-scaled SYK model illustrate these results. The talk concludes with the large-index asymptotics of recursion coefficients for general polynomial potentials and the gradient catastrophe that appears in the continuum limit of asymmetric models. \n 
URL:https://www.ift.uam-csic.es/event/holo-club-lanczos-meets-orthogonal-polynomials/
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:20261013T140000
DTEND;TZID=Europe/Madrid:20261013T150000
DTSTAMP:20261106T055958
CREATED:20261013T095441Z
LAST-MODIFIED:20261015T085717Z
UID:25837-1791900000-1791903600@www.ift.uam-csic.es
SUMMARY:Cosmology Journal Club
DESCRIPTION:Every Tuesday at 2:00 PM in the discussion room on the 5th floor.\n\nJoin the IFT quantum 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/quantum-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:20261015T113000
DTEND;TZID=Europe/Madrid:20261015T123000
DTSTAMP:20261106T055958
CREATED:20261005T074009Z
LAST-MODIFIED:20261013T095612Z
UID:25813-1792063800-1792067400@www.ift.uam-csic.es
SUMMARY:Quantum Info JC: Joint quantum measurements on distant physical systems
DESCRIPTION:Title: Joint quantum measurements on distant physical systems \nVenue & Time: 11:30 / Gray Room 3 \nAbstract: Joint measurements are pivotal in quantum theory\, featuring prominently in key quantum information primitives such as entanglement swapping\, teleportation\, and dense coding. A historically important question has been whether joint measurements can be performed at a distance\, without bringing together the particles to be measured. The original motivation for asking this was understanding whether the measurement process in quantum mechanics is compatible with relativity\, which was already put into question by Landau and Peierls in 1933. However\, its interest is not only fundamental\, since being able to perform joint measurements locally will have a strong impact in the development of protocols for quantum communication and distributed quantum computing. \nIn this talk I will describe a protocol for performing any joint quantum measurement on distant physical systems. It consists on multiple rounds of blind teleportation\, and thus requires of pre-shared entanglement. The amount of rounds needed for localizing a given measurement can be understood as a measure of its complexity. Thus\, we give the first complete classification of joint quantum measurements. I will show that many of the joint measurements that are now routinely studied theoretically and implemented experimentally have low complexity according to this measure. This indicates that there are still many interesting phenomena to discover when it comes to joint quantum measurements.
URL:https://www.ift.uam-csic.es/event/cosmology-journal-club-31/
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:20261015T120000
DTEND;TZID=Europe/Madrid:20261015T130000
DTSTAMP:20261106T055958
CREATED:20261013T081603Z
LAST-MODIFIED:20261014T065443Z
UID:25832-1792065600-1792069200@www.ift.uam-csic.es
SUMMARY:SPS Journal Club: "The Gravitational Path Integral and Initial Conditions of the Universe" by Luis Zapata
DESCRIPTION:Strings\, Pheno and the Swampland (SPS) Journal Club. Every Thursday at 12:00 in the Red Room. \n  \nVenue&Time: Red Room / 12:00 \n Speaker: Luis Zapata \nTitle: “The Gravitational Path Integral and Initial Conditions of the Universe” \nAbstract: Tracing the cosmic evolution of the universe backward leads to a regime where any classical and effective description of spacetime and matter is expected to break down. Understanding those initial conditions raises the question whether a UV complete theory of Quantum Gravity can provide a consistent framework describing its initial stages. Despite the significant progress in UV-complete approaches such as String Theory\, a fully satisfactory answer accounting for these cosmological initial conditions remains open. \nIn this talk\, we will explore a bottom-up approach to this question through the Hartle-Hawking no-boundary proposal introduced in the 1980s. This proposal attempts to define the initial quantum state of the universe through a gravitational path integral over geometries satisfying suitable boundary conditions. We will review the basic ideas\, placing particular emphasis on implications for inflationary initial conditions of our universe.
URL:https://www.ift.uam-csic.es/event/sps-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:20261020T140000
DTEND;TZID=Europe/Madrid:20261020T150000
DTSTAMP:20261106T055958
CREATED:20261015T085408Z
LAST-MODIFIED:20261015T085643Z
UID:25869-1792504800-1792508400@www.ift.uam-csic.es
SUMMARY:Cosmology Journal Club
DESCRIPTION:Every Tuesday at 2:00 PM in the discussion room on the 5th floor.\n\n\n\nJoin the IFT quantum journal club at benty-fields.com to vote for papers and volunteer to present them \n\n\n 
URL:https://www.ift.uam-csic.es/event/quantum-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:20261021T113000
DTEND;TZID=Europe/Madrid:20261021T123000
DTSTAMP:20261106T055958
CREATED:20261014T151836Z
LAST-MODIFIED:20261019T140021Z
UID:25860-1792582200-1792585800@www.ift.uam-csic.es
SUMMARY:Quantum Info JC: "An operational continuum limit of quantum processes"
DESCRIPTION:Title: An operational continuum limit of quantum processes \nVenue & Time: 11:30 / Gray Room 3 \nAbstract: Quantum combs are a powerful tool for investigating quantum processes and their multi-time correlations in quantum information theory. However\, they do not naturally accommodate a physical connection to time\, and their probes are inherently instantaneous\, meaning control strength is not encoded in the theory. \nIn this talk I will present our work which introduces a framework of continuous process tensors (cPTs) for combs in a process context\, remedying this situation. Here\, process tensors are represented by bosonic field theory vectors on the relevant time interval. Associating controls with particle insertions allows us to relate the distinguishing power of instruments with the energetic resources required to implement them. For example\, recovering the discrete case\, instantaneous probes correspond to particle number eigenstates with infinite Fock space norm. As I will elaborate\, this finite-energy perspective also yields well-behaved measures of non-Markovianity\, fixing contradictory properties of standard measures. \nBuilding on this\, we also proved via an explicit dilation theorem that our framework connects to the Schrödinger equation. This gives physical context\, showing that any cPT can be approximated arbitrarily well in Fock space norm by a coupled system-environment dynamics. I will explain in more detail this theorem and show how it enables a set of structural results\, such as Choi duality in the continuum and a rigorous treatment of measurements. \nOur framework thus fills a substantial gap in the quantum information literature by enabling the physically-consistent study of open quantum dynamics and multi-time correlations in the continuum.
URL:https://www.ift.uam-csic.es/event/quantum-info-jc-an-operational-continuum-limit-of-quantum-processes/
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:20261022T120000
DTEND;TZID=Europe/Madrid:20261022T130000
DTSTAMP:20261106T055958
CREATED:20261015T081424Z
LAST-MODIFIED:20261015T151902Z
UID:25867-1792670400-1792674000@www.ift.uam-csic.es
SUMMARY:SPS Journal Club: "Journey to the Centre of the Black Hole" by Matthew J. Blacker
DESCRIPTION:Strings\, Pheno and the Swampland (SPS) Journal Club. Every Thursday at 12:00 in the Red Room. \nTitle: “Journey to the Centre of the Black Hole” \nVenue & Time: Red Room / 12:00 \n Speaker: Matthew J. Blacker \nAbstract: What can we say about holographic theories\, given what we know about the bulk? Conversely\, how can we use holographic theories to probe regions of the bulk where classical physics breaks down? This talk will explore the link between bulk canonical quantum gravity and holographic theories\, using radial Wheeler-DeWitt states as the bridge. We will discuss how Wheeler-DeWitt states can be used a) to constrain putative holographic duals to de Sitter space\, and b) to probe the interior of black holes and the (chaotic) approach to the singularity. Finally\, we will explain how these radial states relate to $T^2(+ \Lambda_2)$ deformed field theories.
URL:https://www.ift.uam-csic.es/event/sps-journal-club-2/
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:20261022T170000
DTEND;TZID=Europe/Madrid:20261022T180000
DTSTAMP:20261106T055958
CREATED:20261015T080624Z
LAST-MODIFIED:20261015T080624Z
UID:25865-1792688400-1792692000@www.ift.uam-csic.es
SUMMARY:Old Journal Club: “Distortions of the Background Radiation Spectrum”
DESCRIPTION:Title: Distortions of the Background Radiation Spectrum \nSpeaker: Mikel Martin Barandiaran \nVenue & Time: Blue Room / 17:00 \nAbstract: The discovery of cosmic blackbody radiation with a temperature of 2.7 K is widely considered as powerful evidence for the hot\, big-bang model of the universe. As first discussed by Gamow\, it is assumed that a very hot\, dense plasma was present during the early stages of the universe\, and interaction of photons and electrons leads inevitably to an equilibrium (blackbody) spectrum. The shape of the equilibrium spectrum is preserved during the subsequent expansion and cooling\, although the radiation temperature decreases to the value of 2.7 K observed today.
URL:https://www.ift.uam-csic.es/event/old-journal-club-distortions-of-the-background-radiation-spectrum/
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:20261027T140000
DTEND;TZID=Europe/Madrid:20261027T150000
DTSTAMP:20261106T055958
CREATED:20261015T085614Z
LAST-MODIFIED:20261026T112521Z
UID:25871-1793109600-1793113200@www.ift.uam-csic.es
SUMMARY:Cosmology Journal Club
DESCRIPTION:Every Tuesday at 2:00 PM in the discussion room on the 5th floor. \n\n\nJoin the IFT quantum journal club at benty-fields.com to vote for papers and volunteer to present them \n\n\n 
URL:https://www.ift.uam-csic.es/event/cosmology-journal-club-32/
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:20261028T113000
DTEND;TZID=Europe/Madrid:20261028T123000
DTSTAMP:20261106T055958
CREATED:20261015T085903Z
LAST-MODIFIED:20261026T113615Z
UID:25875-1793187000-1793190600@www.ift.uam-csic.es
SUMMARY:Quantum Info JC by  Jakub Zakrzewski from the Jagiellonian University in Krakow: "Many-body localization and magic resources"
DESCRIPTION:Title: “Many-body localization and magic resources” \nSpeaker: Jakub Zakrzewski from the Jagiellonian University in Krakow \nVenue & Time: Gray Room / 11:30 \nAbstract: I will provide an overview of many-body localization discussing the open problems with the thermodynamic limit in standard disordered models\, the so-called quantum-sun model as well as the positional disorder as realized\, e.g.\, in Rydberg arrays. Later I shall consider the behavior of nonstabilizerness and fermionic magic resources in the MBL-regime.
URL:https://www.ift.uam-csic.es/event/quantum-info-jc/
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:20261029T110000
DTEND;TZID=Europe/Madrid:20261029T120000
DTSTAMP:20261106T055958
CREATED:20261019T093925Z
LAST-MODIFIED:20261026T113635Z
UID:25940-1793271600-1793275200@www.ift.uam-csic.es
SUMMARY:Journal Club ML-AI-HPC
DESCRIPTION:Venue & Time: Gray Room 1 / 11:00 \nThe meeting agenda: \n1. Discussion on the latest news/papers related to AI topics. Feel free to briefly speak about your favourite one.\n2. Updates on the organisation of the next AI goes MAD^3 workshop at the institute.\n3. Debate led by Karl Landsteiner about the latest achievements concerning the Navier-Stokes equations.
URL:https://www.ift.uam-csic.es/event/journal-club-de-ml-ai-hpc/
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:20261029T120000
DTEND;TZID=Europe/Madrid:20261029T130000
DTSTAMP:20261106T055958
CREATED:20261015T090010Z
LAST-MODIFIED:20261021T131204Z
UID:25876-1793275200-1793278800@www.ift.uam-csic.es
SUMMARY:SPS Journal Club: “Applications of categorical symmetries in two dimensions”
DESCRIPTION:Strings\, Pheno and the Swampland (SPS) Journal Club. Every Thursday at 12:00 in the Red Room. \nTitle: “Applications of categorical symmetries in two dimensions” \nVenue & Time: Red Room / 12:00 \n Speaker: \nAbstract: The goal of this talk is to give a quick overview of some of my recent work during the last years. I will begin with a lightning review of what generalised symmetries are and why it might be sensible\nto relax the group multiplication structure. I will then discuss two applications: \n1) In Non Linear Sigma Models\, the presence of such symmetries protects some of the coupling constants from receiving any quantum corrections. From a target space point of view\, this means some of the parameters of the background cannot receive \alpha’ corrections. \n2) In systems of free chiral fermions\, they give rise to the phenomenon of ‘twisted scattering’ (an incoming local operator that gets scattered into a point operator attached to a topological line)\, which help explain some long standing puzzles of the fermion-monopole scattering problem.
URL:https://www.ift.uam-csic.es/event/sps-journal-club-3/
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:20261029T120000
DTEND;TZID=Europe/Madrid:20261029T130000
DTSTAMP:20261106T055958
CREATED:20261027T075000Z
LAST-MODIFIED:20261027T075138Z
UID:25979-1793275200-1793278800@www.ift.uam-csic.es
SUMMARY:Pheno Journal Club
DESCRIPTION:Venue&Time: Gray Room 2 / 12:00 \nInformal weekly meeting to discuss recent papers\, news\, and other topics of interest.
URL:https://www.ift.uam-csic.es/event/pheno-journal-club-18/
LOCATION:Gray Room 2\, Instituto de Física Teórica\, Madrid\, Madrid\, 28037\, Spain
CATEGORIES:Journal clubs,Scientific activities
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Madrid:20261029T170000
DTEND;TZID=Europe/Madrid:20261029T180000
DTSTAMP:20261106T055958
CREATED:20261015T090207Z
LAST-MODIFIED:20261026T120227Z
UID:25879-1793293200-1793296800@www.ift.uam-csic.es
SUMMARY:Old Journal Club by Michelangelo Tartaglia: "Quantized Hall conductivity in two-dimensions"
DESCRIPTION:Title: “Quantized Hall conductivity in two-dimensions” \nSpeaker: Michelangelo Tartaglia \nVenue & Time: Blue Room / 17:00 \nAbstract: It is shown that the quantization of the Hall conductivity of two-dimensional metals which has been observed recently by Klitzing\, Dorda\, and Pepper and by Tsui and Gossard is a consequence of gauge invariance and the existence of a mobility gap. Edge effects are shown to have no influence on the accuracy of quantization. An estimate of the error based on thermal activation of carriers to the mobility edge is suggested.\n \nPodeis encontrar toda la info en: https://inspirehep.net/literature/175567
URL:https://www.ift.uam-csic.es/event/old-journal-club-2/
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