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DTSTART:20230101T000000
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BEGIN:VEVENT
DTSTART;TZID=UTC:20250401T090000
DTEND;TZID=UTC:20250401T100000
DTSTAMP:20260407T080415
CREATED:20250329T122144Z
LAST-MODIFIED:20250401T085209Z
UID:10064-1743498000-1743501600@www.lapth.cnrs.fr
SUMMARY:Implications of $B^+ to K^+  ubar u$ under rank-one flavour violation hypothesis
DESCRIPTION:Speakers: Claudio Toni\nWe study the implications of the observed excess at Belle-II under the assumption of Rank-One Flavour Violation\, i.e. that New Physics couples to a single specific direction in flavour space. By varying this direction we perform analyses at the level of the low-energy EFT\, the SMEFT\, and with explicit mediators such as leptoquarks and colorless vectors. Among the various mediators\, the scalar leptoquarks $tilde{R}_2$ and $S_1$ offer the best fits of the Belle-II excess\, while being consistent with the other bounds. On the other hand\, colorless vectors are strongly constrained by meson mixing and resonance searches. In all cases we find that a flavour alignment close to the third generation is generically preferred.\nhttps://indico.in2p3.fr/event/36029/
URL:https://www.lapth.cnrs.fr/en/event/implications-of-b-to-k-ubar-u-under-rank-one-flavour-violation-hypothesis/
LOCATION:Salle de Sommets
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250327T100000
DTEND;TZID=UTC:20250327T110000
DTSTAMP:20260407T080415
CREATED:20250214T154949Z
LAST-MODIFIED:20250316T044732Z
UID:9147-1743069600-1743073200@www.lapth.cnrs.fr
SUMMARY:Rafael Alves Batista
DESCRIPTION:Speakers: Rafael Alves Batista\nhttps://indico.in2p3.fr/event/35589/
URL:https://www.lapth.cnrs.fr/en/event/rafael-alves-batista/
LOCATION:Auditorium Vivargent (LAPTh)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250326T150000
DTEND;TZID=UTC:20250326T160000
DTSTAMP:20260407T080415
CREATED:20250213T091650Z
LAST-MODIFIED:20250316T044732Z
UID:9098-1743001200-1743004800@www.lapth.cnrs.fr
SUMMARY:Niall Macpherson
DESCRIPTION:Speakers: Niall Macpherson (Oviedo Univ.)\n.\nAbstract: \nLink: Zoom\nAnLy: https://sites.google.com/view/anlystringsandfields\n \n \nhttps://indico.in2p3.fr/event/35526/
URL:https://www.lapth.cnrs.fr/en/event/niall-macpherson/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250326T130000
DTEND;TZID=UTC:20250326T140000
DTSTAMP:20260407T080415
CREATED:20250227T153337Z
LAST-MODIFIED:20250316T044732Z
UID:9276-1742994000-1742997600@www.lapth.cnrs.fr
SUMMARY:Marios Petropoulos
DESCRIPTION:https://indico.in2p3.fr/event/35662/
URL:https://www.lapth.cnrs.fr/en/event/marios-petropoulos/
LOCATION:Auditorium Vivargent (LAPTh)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250320T100000
DTEND;TZID=UTC:20250320T110000
DTSTAMP:20260407T080415
CREATED:20250311T094902Z
LAST-MODIFIED:20250316T044731Z
UID:9598-1742464800-1742468400@www.lapth.cnrs.fr
SUMMARY:A probabilistic approach to Toda Conformal Field Theories
DESCRIPTION:Speakers: Baptiste Cerclé (EPFL)\nConformal invariance is a feature that arises for a large class of models of statistical physics at criticality. To address the issue of understanding the conformal field theory (CFT) thus defined\, Belavin-Polyakov-Zamolodchikov designed in 1984 a general method for solving such a theory\, dubbed conformal bootstrap. However there is a large class of models\, such as the critical three-states Potts model\, that enjoy in addition to conformal invariance an enhanced level of symmetry called higher-spin symmetry. Capturing this feature led to the introduction by Zamolodchikov of the notion of W-algebras\, which are Vertex Algebras containing the Virasoro algebra.\n \nIn this talk we will explain how this higher-spin symmetry manifests itself for Toda CFTs\, generalizations of Liouville CFT that enjoy this higher level of symmetry. Namely in a first part we will explain how probability theory allows to define rigorously such models. We will then explain how this symmetry manifests itself within this probabilistic framework and describe some of its implications\, such as the computation of a family of correlation functions of the theory.\nhttps://indico.in2p3.fr/event/35896/
URL:https://www.lapth.cnrs.fr/en/event/baptiste-cercle/
LOCATION:Auditorium Vivargent (LAPTh)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250313T100000
DTEND;TZID=UTC:20250313T110000
DTSTAMP:20260407T080415
CREATED:20250213T091650Z
LAST-MODIFIED:20250313T104702Z
UID:9097-1741860000-1741863600@www.lapth.cnrs.fr
SUMMARY:New Physics from the “Hubble Tension”
DESCRIPTION:Speakers: Vivian Poulin (LUPM (CNRS & U. de Montpellier))\nOver the last decade\, measurements of the expansion rate of the universe today\, H0\, made with cepheid-calibrated SN1a have become increasingly discrepant with the value predicted from the ΛCDM model when fit to CMB data. After a brief review of the experimental situation\, I will show the potential implications of this “Hubble tension” for new physics. I will argue that it points to some new mechanism at play in the pre- recombination universe (i.e.\, z > 1000)\, rather than a new dynamical effect at late-time (i.e. 0 < z < 1). I will discuss some model-independent implications of the Hubble tension that can help shed light on its origin.\nhttps://indico.in2p3.fr/event/35427/
URL:https://www.lapth.cnrs.fr/en/event/vivian-poulin/
LOCATION:Auditorium Vivargent (LAPTh)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250312T150000
DTEND;TZID=UTC:20250312T160000
DTSTAMP:20260407T080415
CREATED:20250213T091650Z
LAST-MODIFIED:20250312T154707Z
UID:9096-1741791600-1741795200@www.lapth.cnrs.fr
SUMMARY:Miguel Montero - The DGKT scenario and the Weak Gravity Conjecture
DESCRIPTION:Speakers: Miguel Montero (IFT Madrid)\n.\nAbstract: I will discuss how generic quantum corrections lift the moduli space of BPS branes in 4d N=1 scale-separated solutions like DGKT. This means that there is a tension between this scenario and the WGC for membranes\, which demands the existence of an exactly extremal brane. Similar tensions exist in any 4d N=1 scenario not protected by a parity symmetry\, and I will mention some examples.\nLink: Zoom\nAnLy: https://sites.google.com/view/anlystringsandfields\n \n \nhttps://indico.in2p3.fr/event/35506/
URL:https://www.lapth.cnrs.fr/en/event/miguel-montero/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250306T100000
DTEND;TZID=UTC:20250306T110000
DTSTAMP:20260407T080415
CREATED:20250213T114351Z
LAST-MODIFIED:20250306T102043Z
UID:9108-1741255200-1741258800@www.lapth.cnrs.fr
SUMMARY:New frontiers of Feynman Integral Computations: Mathematical Structures in Phenomenology
DESCRIPTION:Speakers: Ekta Chaubey (U. Bonn)\nIn this talk\, I will discuss how to advance the mathematical understandingof multi-loop\, multi-leg\, and multi-scale Feynman integrals and to bridgethe gap between the mathematical framework of scattering amplitudes andtheir phenomenological applications. I will highlight their broad relevance\,not only in achieving groundbreaking predictions for LHC observations butalso in extending their impact beyond elementary particle physics. Forinstance\, these computations play a crucial role in the precise calculationof bound-state observables and have contributed to breakthroughs ingravitational wave research.\nhttps://indico.in2p3.fr/event/35573/
URL:https://www.lapth.cnrs.fr/en/event/ekta-chaubey/
LOCATION:Salle des Sommets (LAPTh)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250304T100000
DTEND;TZID=UTC:20250304T110000
DTSTAMP:20260407T080415
CREATED:20250227T153336Z
LAST-MODIFIED:20250304T094804Z
UID:9274-1741082400-1741086000@www.lapth.cnrs.fr
SUMMARY:Moving cosmological data analysis forward with differentiable forward models
DESCRIPTION:Speakers: Thomas Floss (University of Vienna)\nCosmology is about to receive a large influx of a variety of observational data\, providing a promising avenue for addressing some of the most critical questions in fundamental physics. In this seminar\, I will give a brief introduction to some of the concepts used in standard cosmological data analysis.I will then discuss some recent work on developing more optimal methods of extracting cosmological information from data using differentiable forward models\, with the goal of maximizing the scientific potential of cosmological surveys.\nhttps://indico.in2p3.fr/event/35725/
URL:https://www.lapth.cnrs.fr/en/event/moving-cosmological-data-analysis-forward-with-differentiable-forward-models/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250227T100000
DTEND;TZID=UTC:20250227T110000
DTSTAMP:20260407T080415
CREATED:20250213T091650Z
LAST-MODIFIED:20250218T233430Z
UID:9095-1740650400-1740654000@www.lapth.cnrs.fr
SUMMARY:Oliver Schlotterer
DESCRIPTION:Speakers: Oliver Schlotterer (Uppsala Universitet)\nhttps://indico.in2p3.fr/event/35296/
URL:https://www.lapth.cnrs.fr/en/event/oliver-schlotterer/
LOCATION:Auditorium Vivargent (LAPTh)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250220T100000
DTEND;TZID=UTC:20250220T110000
DTSTAMP:20260407T080415
CREATED:20250213T091649Z
LAST-MODIFIED:20250218T233430Z
UID:9094-1740045600-1740049200@www.lapth.cnrs.fr
SUMMARY:Exploring Singularities of Integrals from Physics via Computational Algebraic Geometry
DESCRIPTION:Speakers: Claudia Fevola (Inria-Saclay)\nFeynman integrals play a central role in particle physics\, particularly in the theory of scattering amplitudes. A key challenge lies in identifying the values of physical parameters at which a given integral develops singularities. In this talk\, I will present examples demonstrating how the interplay between algebro-geometric methods and fundamental physics problems drives advances in both fields. I will discuss theoretical and practical methods for studying the singularities of Feynman integrals and provide explicit formulas for the specific case of integrals of products of linear polynomials\, inspired by applications in theoretical cosmology. This work is based on collaborations with Saiei Matsubara-Heo\, Sebastian Mizera\, and Simon Telen.\nhttps://indico.in2p3.fr/event/35295/
URL:https://www.lapth.cnrs.fr/en/event/exploring-singularities-of-integrals-from-physics-via-computational-algebraic-geometry/
LOCATION:Auditorium Vivargent (LAPTh)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250206T100000
DTEND;TZID=UTC:20250206T110000
DTSTAMP:20260407T080415
CREATED:20241125T075901Z
LAST-MODIFIED:20241219T133350Z
UID:8432-1738836000-1738839600@www.lapth.cnrs.fr
SUMMARY:Irene Tamborra
DESCRIPTION:https://indico.in2p3.fr/event/33937/
URL:https://www.lapth.cnrs.fr/en/event/irene-tamborra/
LOCATION:Salle des Sommets (LAPTh)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250205T123000
DTEND;TZID=UTC:20250207T170000
DTSTAMP:20260407T080415
CREATED:20241218T102320Z
LAST-MODIFIED:20241219T133350Z
UID:8893-1738758600-1738947600@www.lapth.cnrs.fr
SUMMARY:RPP 2025
DESCRIPTION:The Rencontres de Physique des Particules (RPP) are the annual general meeting of the French community in theoretical high-energy physics. It dwells into the deepest puzzles posed by our current understanding of the fundamental structure of matter and the history of our Universe. Aiming at pushing further the frontier of knowledge.\nThe Laboratoire d’Annecy de Physique Theorique (LAPTh) is delighted to host the RPP’s 2025 edition from February 5th to 7th in Annecy. The local organising committee is composed of Geneviève Bélanger\, Cédric Delaunay\, Diego Guadagnoli and Jérémie Quevillon\, as well as Dominique Turc\, Véronique Jonnery and Virginie Malaval for the administrative part.\nThe sessions will open with an invited review lecture\, followed by selected highlights of the latest development in the field.\nConfirmed invited speakers include :\nFrancesca Calore (LAPTh)\nYann Mambrini (IJCLab)\nMéril Reboud (IJCLab)\nAdam Falkowski (IJCLab)\nQuentin Bonnefoy (IPHC)\nParticipants are kindly invited to register here at their earliest convenience until January 15th. \nThose interested to give a talk on their research\, please submit your abstract here before January 8th. \n \n \nOrganising Committee:  \nGeneviève BélangerCédric DelaunayDiego GuadagnoliJérémie Quevillon\nVéronique Jonnery (admin)Virginie Malaval (admin)Dominique Turc (admin head)\n \nFunding sources: LAPTh\, CPTGA\, Enigmass+\n \n   \nhttps://indico.in2p3.fr/event/34316/
URL:https://www.lapth.cnrs.fr/en/event/rpp-2025/
LOCATION:Auditorium Vivargent (Laboratoire d’Annecy de Physique Théorique (LAPTh))
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250130T100000
DTEND;TZID=UTC:20250130T110000
DTSTAMP:20260407T080415
CREATED:20241125T080227Z
LAST-MODIFIED:20241219T133349Z
UID:8456-1738231200-1738234800@www.lapth.cnrs.fr
SUMMARY:Julien Lavalle
DESCRIPTION:https://indico.in2p3.fr/event/34677/
URL:https://www.lapth.cnrs.fr/en/event/julien-lavalle/
LOCATION:Salle des Sommets (LAPTh)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250129T150000
DTEND;TZID=UTC:20250129T160000
DTSTAMP:20260407T080415
CREATED:20241218T102320Z
LAST-MODIFIED:20241219T133349Z
UID:8891-1738162800-1738166400@www.lapth.cnrs.fr
SUMMARY:Chris Hull
DESCRIPTION:Speakers: Chris Hull (Imperial College)\n.\nAbstract: \nLink: Zoom\nAnLy: https://sites.google.com/view/anlystringsandfields\n \n \nhttps://indico.in2p3.fr/event/35004/
URL:https://www.lapth.cnrs.fr/en/event/chris-hull/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250123T100000
DTEND;TZID=UTC:20250123T110000
DTSTAMP:20260407T080415
CREATED:20241125T080227Z
LAST-MODIFIED:20241219T133349Z
UID:8455-1737626400-1737630000@www.lapth.cnrs.fr
SUMMARY:Marko Pesut
DESCRIPTION:https://indico.in2p3.fr/event/34676/
URL:https://www.lapth.cnrs.fr/en/event/marko-pesut/
LOCATION:Salle des Sommets (LAPTh)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20250116T100000
DTEND;TZID=UTC:20250116T110000
DTSTAMP:20260407T080415
CREATED:20241125T080226Z
LAST-MODIFIED:20241219T133349Z
UID:8454-1737021600-1737025200@www.lapth.cnrs.fr
SUMMARY:Marco Chianese
DESCRIPTION:https://indico.in2p3.fr/event/34675/
URL:https://www.lapth.cnrs.fr/en/event/marco-chianese/
LOCATION:Salle des Sommets (LAPTh)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20241213T133000
DTEND;TZID=UTC:20241213T153000
DTSTAMP:20260407T080415
CREATED:20241209T101957Z
LAST-MODIFIED:20241213T150725Z
UID:8786-1734096600-1734103800@www.lapth.cnrs.fr
SUMMARY:Le Futur Collisionneur Circulaire: Pourquoi ? Quand ? Comment ?
DESCRIPTION:Speakers: Christophe Grojean (DESY (Hamburg) and Humboldt University (Berlin))\nLe futur collisionneur circulaire se profile comme le prochain grand défi scientifique à relever. Son programme ambitieux devrait occuper la physique des hautes énergies pour les décennies à venir.  Qu’il s’agisse d’explorer le modèle standard avec une précision sans précédent ou de rechercher de nouvelles particules\, cette machine est conçue avec la polyvalence et la diversité au cœur de son programme échelonnée en plusieurs étapes. Cette présentation visera à donner un aperçu de l’état actuel du projet. L’accent sera mis sur les aspects physiques\, en particulier ceux de la phase initiale avec des collisions d’électrons et de positons.\nFuture Circular Collider: What? Why? When? The Future Circular Collider program is profiling itself as the next big challenge taken up by fundamental science. This ambitious program would be a unique opportunity to fuel the field of high-energy physics for several decades to come.  Be it for exploring the standard model with unprecedented precision or to search for new physics\, this machine is being designed with versatility and diversity at the heart of its multi-stage program. This presentation will aim at providing a snapshot at the current state of affairs. Emphasis will be given on the physics case\, particularly for the early stage with electron-positron collisions.\nhttps://indico.in2p3.fr/event/34934/
URL:https://www.lapth.cnrs.fr/en/event/le-futur-collisionneur-circulaire-pourquoi-quand-comment/
LOCATION:Auditorium Vivargent (LAPP / LAPTh)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20241211T150000
DTEND;TZID=UTC:20241211T160000
DTSTAMP:20260407T080415
CREATED:20241125T080226Z
LAST-MODIFIED:20241211T162836Z
UID:8453-1733929200-1733932800@www.lapth.cnrs.fr
SUMMARY:Philippe Brax - Axio-dilaton screened cosmology
DESCRIPTION:Speakers: Philippe Brax (CEA)\n.\nAbstract: I will review the problems caused by light scalar fields in particular with respect to gravitational tests and consider a new type of screening mechanism which allows to evade them. This involves two fields\, an axion-like field and a dilaton\, for which I will also present new results on their cosmology and a link to early dark energy.\nLink: Zoom\nAnLy: https://sites.google.com/view/anlystringsandfields\n \n \nhttps://indico.in2p3.fr/event/34608/
URL:https://www.lapth.cnrs.fr/en/event/philippe-brax/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20241210T130000
DTEND;TZID=UTC:20241210T153000
DTSTAMP:20260407T080415
CREATED:20241125T080226Z
LAST-MODIFIED:20241210T143240Z
UID:8452-1733835600-1733844600@www.lapth.cnrs.fr
SUMMARY:Felipe Figueroa
DESCRIPTION:https://indico.in2p3.fr/event/33909/
URL:https://www.lapth.cnrs.fr/en/event/felipe-figueroa/
LOCATION:Auditorium (Annecy-le-Vieux)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20241205T100000
DTEND;TZID=UTC:20241205T110000
DTSTAMP:20260407T080415
CREATED:20241128T085746Z
LAST-MODIFIED:20241205T105205Z
UID:8501-1733392800-1733396400@www.lapth.cnrs.fr
SUMMARY:Entanglement and quantum phase transitions : An introduction
DESCRIPTION:Speakers: Gilles Parez (Lapth)\nMany papers (and grant proposal) about quantum information and quantum entanglement in many-body systems contain a version of the following sentence in their introduction:\n“It is very efficient to use quantities originally defined in the context of quantum information\, such as entanglement measures\, to detect and characterize quantum phase transitions in many-body systems. ”\nIn this JC\, I will explain the meaning of this sentence\, assuming no knowledge on quantum entanglement\, by reviewing relevant seminal papers\, and discuss some new exciting results in the field.\nhttps://indico.in2p3.fr/event/34805/
URL:https://www.lapth.cnrs.fr/en/event/gilles-parez/
LOCATION:Salle des Sommets (LAPTh)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20241205T100000
DTEND;TZID=UTC:20241205T110000
DTSTAMP:20260407T080415
CREATED:20241125T075956Z
LAST-MODIFIED:20241205T105205Z
UID:8442-1733392800-1733396400@www.lapth.cnrs.fr
SUMMARY:Entanglement and quantum phase transitions : An introduction
DESCRIPTION:Speakers: Gilles Parez\nAs you may know\, my research interests lie at the intersection of integrable systems and quantum information. This JC will be the occasion for me to give a *literal* introduction to the latter. \nMany papers (and grant proposal) about quantum information and quantum entanglement in many-body systems contain a version of the following sentence in their introduction:\n“It is very efficient to use quantities originally defined in the context of quantum information\, such as entanglement measures\, to detect and characterize quantum phase transitions in many-body systems. ” \nIn this JC\, I will explain the meaning of this sentence\, assuming no knowledge on quantum entanglement\, by reviewing relevant seminal papers\, and discuss some new exciting results in the field.\nhttps://indico.in2p3.fr/event/34012/
URL:https://www.lapth.cnrs.fr/en/event/entanglement-and-quantum-phase-transitions-an-introduction/
LOCATION:Salle de Sommets
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20241203T070000
DTEND;TZID=UTC:20241203T180000
DTSTAMP:20260407T080415
CREATED:20241125T075956Z
LAST-MODIFIED:20241203T170456Z
UID:8440-1733209200-1733248800@www.lapth.cnrs.fr
SUMMARY:AnLy 5th in-person Meeting
DESCRIPTION:This is the 5th instance of the in-person AnLy meetings between neighboring institutions (IP2I Lyon\, LAPTh Annecy\, LPENSL Lyon) on string and field theory topics. It will take place at ENS Lyon\, room MGN1-103 (1st floor\, research side)\, on the 03rd December 2024.\n \nTravel: Options between Lyon and Annecy are train (or train + bus)\, Flixbus\, or car (and car-sharing).\nRecommended trains: 07:43 (Annecy)-09:52 (Lyon Part-Dieu); 18:08 (Lyon Part-Dieu)-20:15 (Annecy)\n \nLunch: It will be provided to registered participants of the meeting.\n \nRegistration: It opens on the 08th Oct. and closes on the 14th Nov. 2024.\n \nhttps://indico.in2p3.fr/event/34144/
URL:https://www.lapth.cnrs.fr/en/event/anly-5th-in-person-meeting/
LOCATION:ENS Lyon
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20241128T100000
DTEND;TZID=UTC:20241128T110000
DTSTAMP:20260407T080415
CREATED:20241125T075901Z
LAST-MODIFIED:20241128T102228Z
UID:8430-1732788000-1732791600@www.lapth.cnrs.fr
SUMMARY:Positivity Constraints for condensed matter and cosmology
DESCRIPTION:Speakers: Paolo Creminelli (ICTP\, Trieste)\nThe coefficients of the operators of an effective field theory (EFT) are constrained to satisfy certain inequalities\, under the (mild) assumption that the UV completion satisfies general requirements of causality and unitarity. I discuss the extension of these ideas to theories where the Lorentz symmetry is spontaneously broken\, as it happens in cosmology and condensed matter physics. I explain why the use of the S-Matrix run into immediate problems. Constraints can be derived using dispersive arguments for the 2-point function of conserved currents. As a concrete application I will discuss general bounds on the electromagnetic properties of media. \nhttps://indico.in2p3.fr/event/34182/
URL:https://www.lapth.cnrs.fr/en/event/paolo-creminelli/
LOCATION:Auditorium Vivargent (CNRS Annecy)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20241127T150000
DTEND;TZID=UTC:20241127T160000
DTSTAMP:20260407T080415
CREATED:20241125T075955Z
LAST-MODIFIED:20241127T144510Z
UID:8436-1732719600-1732723200@www.lapth.cnrs.fr
SUMMARY:Jakob Moritz - De Sitter candidates in string theory
DESCRIPTION:Speakers: Jakob Moritz (CERN)\n.\nAbstract: The simplest cosmology compatible with the accelerated expansion of our universe is de Sitter space. Yet\, more than 25 years after the discovery of “dark energy’’\, concrete de Sitter vacua of string theory have remained elusive. In this talk I will present the first fully concrete string compactifications that yield\, at leading order in the string loop and α’α’ expansions\, de Sitter vacua of a form envisioned by Kachru\, Kallosh\, Linde and Trivedi (KKLT) more than 20 years ago. I will begin by reviewing the KKLT proposal and its complex set of delicately balanced ingredients. Then\, I will show how all the required features come together in actual examples: I will define explicit Calabi-Yau orientifolds and choices of quantized fluxes\, and derive the corresponding four-dimensional effective supergravity theories. Each example includes a strongly warped “Klebanov-Strassler throat” region containing a single anti-D3-brane\, whose supersymmetry-breaking energy\, computed at leading order in α′\, causes an uplift to a metastable de Sitter vacuum in which all moduli are stabilized. I will conclude by emphasizing a set of outstanding computational problems that need to be overcome in order to determine whether these vacua survive (presently unknown) subleading corrections\, and thus promote to full solutions of string theory.\nLink: Zoom\nAnLy: https://sites.google.com/view/anlystringsandfields\n \n \nhttps://indico.in2p3.fr/event/34412/
URL:https://www.lapth.cnrs.fr/en/event/jakob-moritz/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20241121T120000
DTEND;TZID=UTC:20241126T143000
DTSTAMP:20260407T080415
CREATED:20241125T075955Z
LAST-MODIFIED:20241126T114951Z
UID:8435-1732190400-1732631400@www.lapth.cnrs.fr
SUMMARY:Analyticity\, Unitarity\, Crossing: An Introduction
DESCRIPTION:Speakers: Diego Guadagnoli (LAPTh Annecy)\, Ludovico Vittorio (LAPTh\, Université Savoie Mont-Blanc and CNRS\, Annecy\, France)\nTeacher: Balasubramanian Ananthanarayan (Anant)\, Bangalore\, Indian Inst. Sci.\nLanguage: English\nSummary\nThe course is placed at the interface between particle physics and mathematical physics. It is addressed to PhD-level students\, and aims at introducing\, in a self-contained way\, fundamental concepts about scattering amplitudes and boot-straps\, as well as about effective theories. Such concepts are key to constrain and improve theories.\nContent\nThe course\, already given in 2024 at EPFL (Lausanne)\, is focused on scattering theory\, dispersion relations\, and related areas in field theory. These concepts were established in the 1950s and are crucial for understanding locality and causality in physics.\nThe course aims to systematically build up from first principles\, and covers key topics including: • pion-pion scattering\, • form-factor analysis\, • extension to pion-kaon scattering\, • principles of rescattering and (if time permits) three-body final-state effects\, • the Roy equations for pion scattering\, • the Froissart bound\, • introduction to Regge theory.\nExtensive literature beyond the course notes will be provided during the course.\nStructure\n8 lectures (16 hours in total)\n·    The detailed plan will be fixed according to the preferences of the participants — particularly those coming from outside Annecy. One possibility is to have 2+2 hours on Thu\, Fri\, Mon\, Tue\, so that participants can travel to Annecy on Thu morning\, spend the weekend in Annecy 😉 and leave on Tue afternoon.\n·    The second half of lectures may be tutorial sessions depending on the audience’s preference. In this case\, the time will be devoted to solving problems either on the blackboard or on a Mathematica-based teaching platform.\n·    Course foreseen to be in-presence only (no remote participation) to maximize teacher-students interaction.\nKeywords\nPion scattering\, Roy equations\, form factors\, dispersion relations\nPrerequisites\nBasic field theory\, particle physics\, calculus\nhttps://indico.in2p3.fr/event/33894/
URL:https://www.lapth.cnrs.fr/en/event/analyticity-unitarity-crossing-an-introduction/
LOCATION:Grande Galérie (LAPTh)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20241121T100000
DTEND;TZID=UTC:20241121T110000
DTSTAMP:20260407T080415
CREATED:20241125T075900Z
LAST-MODIFIED:20241125T075900Z
UID:8428-1732183200-1732186800@www.lapth.cnrs.fr
SUMMARY:Scattering Transforms in astrophysics\, application to components separation
DESCRIPTION:Speakers: Erwan Allys (LPENS Paris)\nNew statistical descriptions related to the so-called Scattering Transform recently obtained attractive results for several astrophysical applications. These statistics share ideas with convolutional neural networks\, but do not require to be learned\, allowing for very efficient characterization of non-Gaussian processes from a very small amount of data. In this talk\, I will introduce these statistical descriptions\, and give an overview of the different results they allowed to obtain recently. I will focus on ongoing works on non-Gaussian modeling and component separation directly from observational data\, in the scientific context of CMB B-mode detection beyond Galactic foregrounds.\nhttps://indico.in2p3.fr/event/34021/
URL:https://www.lapth.cnrs.fr/en/event/scattering-transforms-in-astrophysics-application-to-components-separation/
LOCATION:Salle des Sommets (LAPTh)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Africa/Abidjan:20241010T090000
DTEND;TZID=Africa/Abidjan:20241010T100000
DTSTAMP:20260407T080415
CREATED:20240326T145430Z
LAST-MODIFIED:20240326T145430Z
UID:8330-1728550800-1728554400@www.lapth.cnrs.fr
SUMMARY:Maxim Chernodub
DESCRIPTION:Speakers: Maxim Chernodub (Institut Denis Poisson (Tours\, France)) \nhttps://indico.in2p3.fr/event/32564/
URL:https://www.lapth.cnrs.fr/en/event/maxim-chernodub/
LOCATION:Auditorium Vivargent (LAPTh)
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Africa/Abidjan:20240902T070000
DTEND;TZID=Africa/Abidjan:20240906T150000
DTSTAMP:20260407T080415
CREATED:20240326T145429Z
LAST-MODIFIED:20240326T145429Z
UID:8329-1725260400-1725634800@www.lapth.cnrs.fr
SUMMARY:RAQIS 24
DESCRIPTION:Recent Advances in Quantum Integrable Systems \nhttps://indico.in2p3.fr/event/32579/
URL:https://www.lapth.cnrs.fr/en/event/raqis-24/
LOCATION:LAPTh
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Africa/Abidjan:20240418T090000
DTEND;TZID=Africa/Abidjan:20240418T100000
DTSTAMP:20260407T080415
CREATED:20240326T145429Z
LAST-MODIFIED:20240326T145429Z
UID:8328-1713430800-1713434400@www.lapth.cnrs.fr
SUMMARY:Gilberto Tetlalmatzi-Xolocotzi
DESCRIPTION:Speakers: Gilberto Tetlalmatzi-Xolocotzi (Universität Siegen) \nhttps://indico.in2p3.fr/event/32169/
URL:https://www.lapth.cnrs.fr/en/event/gilberto-tetlalmatzi-xolocotzi/
LOCATION:Auditorium Vivargent (LAPTh)
END:VEVENT
END:VCALENDAR