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SUMMARY:Revisiting black-hole perturbation theory: the hyperboloidal slice
  approach - Rodrigo Panosso Macedo (Queen Mary)
DTSTART:20191025T120000Z
DTEND:20191025T130000Z
UID:TALK129742@talks.cam.ac.uk
CONTACT:Dejan Gajic
DESCRIPTION:After reviewing the well-established notion of black-hole pert
 urbation theory and the concept of quasinormal modes\, we present a spectr
 al representation of solutions to relativistic wave equations based on a g
 eometrical approach in which the constant-time surfaces extend until futur
 e null infinity. Here\, we restrict ourselves to an asymptotically flat\, 
 spherical symmetric spacetime (with focus on the Reissner-Nordstrom soluti
 on). With the help of a Laplace transformation on the wave equation in que
 stion\, we provide a geometrical interpretation to known algorithms (i.e. 
 Leaver’s approach) apart from deriving an algorithm for obtaining all in
 gredients of the desired spectral decomposition\, including quasi-normal m
 odes\, quasi-normal mode amplitudes as well as the jump of the Laplace-tra
 nsform along the branch cut.
LOCATION:Pavilion B Potter Room (B1.19)
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