Hannover 2003 – scientific programme
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GR: Gravitation und Relativitätstheorie
GR IV: HV IV
GR IV.1: Invited Talk
Tuesday, March 25, 2003, 11:00–11:45, A310
Topological twists in quantum black holes — •Jorma Louko — School of Mathematical Sciences, University of Nottingham, Nottingham NG7 2RD, United Kingdom
An astrophysical black hole created by a collapsing star has an event horizon with topology S2 and contains no white hole region. By contrast, black-and-white hole solutions to Einstein’s equations and their generalisations may have horizon topology different from S2, and an exterior region may also have inequivalent maximal analytic extensions. I discuss how these topological issues affect the thermodynamics of eternal black holes. The topological freedom can in particular be used to probe M-theoretic duality conjectures.