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SUMMARY:Daniele Gregori: Integrability tools and insights into black holes
 ’ ringdown
DTSTART:20231024T083000Z
DTEND:20231024T093000Z
DTSTAMP:20260504T201300Z
UID:indico-event-10623@indico.math.cnrs.fr
DESCRIPTION:In this talk\, I will explain how to apply some standard integ
 rability tools like Thermodynamic Bethe Ansatz (TBA) or Quantum Wronskian 
 to realistic black holes models. In particular\, the ringdown phase of bla
 ck holes merging can be described by linear perturbation theory\, especial
 ly the quasinormal modes. The perturbations obey relatively simple Ordinar
 y Differential Equations (ODEs)\, which we closely analyse through the so-
 called ODE/IM correspondence with 2D Integrable Models (IMs). These ODEs a
 re also shared by 4D N=2 SU(2) gauge theories\, hence our treatment explai
 ns the use of the latter for the characterization and computation of quasi
 normal modes. A promising new method for the computation of these is also 
 the Thermodynamic Bethe Ansatz. Based on arXiv:1908.08030\, arXiv:2112.114
 34\, arXiv:2208.14031 and arXiv:23**.***** .\n\nhttps://indico.math.cnrs.f
 r/event/10623/
URL:https://indico.math.cnrs.fr/event/10623/
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