Gravity seminar - Massimo Bianchi Seminar
- Time:
- 12:00
- Date:
- 11Ìý±·´Ç±¹±ð³¾²ú±ð°ùÌý2021
- Venue:
- Online seminar
For more information regarding this seminar, please email Fabian Gittins at F.W.R.Gittins@soton.ac.uk .
Event details
Title: Quasi-Normal Modes of Black-Holes and Branes from Quantum Seiberg-Witten Curves
Abstract: After reviewing the role Quasi-Normal Modes (QNMs) play in the
Gravitational Wave (GW) signals emitted in the ring-down phase of
Black-Hole (BH) mergers, we present a novel efficient approach to
compute QNMs of BHs, D-branes and fuzz-balls, based on quantum
Seiberg-Witten (SW) curves for N=2 supersymmetric Yang-Mills (SYM)
theories. We find remarkable agreement with numerical results obtained
by means of Leaver's method of continuous fractions and with
`semi-classical' results obtained in the eikonal approximation, based on
geodetic motion. Finally we discuss the extension to D3-branes and their
bound states of Couch-Torrence (CT) conformal inversions, that exchange
horizon and infinity, and show that they keep the photon-sphere (or
photon-halo) fixed.
Speaker information
Massimo Bianchi , Rome.