Speakers: Baptiste Cerclé (EPFL) Conformal 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 […]
https://indico.in2p3.fr/event/35662/
Speakers: Niall Macpherson (Oviedo Univ.) . Abstract: Link: Zoom AnLy: https://sites.google.com/view/anlystringsandfields https://indico.in2p3.fr/event/35526/
Speakers: Rafael Alves Batista https://indico.in2p3.fr/event/35589/
Speakers: Claudio Toni We 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 […]
Speakers: Marco Bonici (INAF-IASF Milano) The analysis of galaxy clustering measurements from surveys like Euclid or DESI is likely to be affected by the so-called projection effects, which causes the […]
Speakers: Richard Taillet (Université de Savoie/LAPTH) L'hypothèse d'un univers héliocentrique formulée par Nicolas Copernic en 1543, en opposition au modèle géocentrique dit « de Ptolémée » et en vigueur depuis […]
Speakers: Zucheng Gao Parity-violating has been found in the weak interactions. In cosmology, certain inflation mechanism can also introduce parity-violating imprints on the primordial fluctuations. Here we present theoretically how […]
Speakers: Daniele Oriti (Universidad Complutense de Madrid) . Abstract: We show how a cosmological dynamics with a late-time cosmic acceleration and an asymptotic deSitter regime can be obtained from hydrodynamics on minisuperspace, a framework generalising quantum cosmology with non-linear terms. We also show how this hydrodynamics framework can be derived from fundamental quantum gravity models within […]
Speakers: Clément Delcamp (IHES) Defining internal symmetry in a quantum theory through the lens of topological defects has opened the door to generalised notions of symmetry. In this seminar, I will introduce such generalisations and sketch the relevant mathematical framework, before presenting explicit examples in quantum lattice models. https://indico.in2p3.fr/event/35727/
Speakers: Jiamin HOU (Max Planck Institute for Extraterrestrial Physics (MPE)) Galaxy N-point function statistics provide a powerful tool for extracting non-Gaussian information. To efficiently compute N-point functions, various approaches have been proposed, including radial-angular decomposition in harmonic space and compressed statistics. In particular, the statistics involving four fields can be designed to be an effective […]
Speakers: Yann Gouttenoire (Tel Aviv University) Abstract: In order to explain the large amplitude of the nano-Hertz stochastic gravitational wave background observed in pulsar timing arrays (PTA), primordial sources must be particularly energetic. This is correlated to the generation of large density fluctuations, later collapsing into ultra-compact mini-halo (UCMHs). We demonstrate that if dark matter […]