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SUMMARY:Black Hole perturbation theory from 2D CFTs & N =2 D=4 susy gauge
theories
DTSTART:20231025T120000Z
DTEND:20231025T130000Z
DTSTAMP:20240910T165800Z
UID:indico-event-38102@agenda.infn.it
DESCRIPTION:Speakers: Giulio Bonelli (SISSA)\n\nThe study of Black-Hole pe
rturbation theory is a classical problem in General Relativity and crucial
to study gravitational waves.Due to the high order of symmetry of the BH
gravitational field and the consequent separation of variables at the line
ar order\, the problem reduces to the study of linear ordinary second orde
r differential equations.The resulting ODEs are of Fuchsian type and there
fore\, as already observed long ago by A.M.Polyakov\, can be solved exactl
y in terms of classical - regular or irregular - Virasoro conformal blocks
.By making use of the specific explicit expressions of the latter implied
by the AGT dual perspective on the conformal field theory\, it is possible
to explicitly solve the connection problem of the resulting (confluent)He
un equation and give novel exact and explicit formulas for the grey body f
actor\, quasi-normal modes and Love numbers of diverse black holes.This wi
ll be explicitly applied to 4D Kerr and Schwarzschild-(A)de Sitter BHs. \
n\nhttps://agenda.infn.it/event/38102/
LOCATION:AULA GRASSANO
URL:https://agenda.infn.it/event/38102/
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