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Black hole Berry phase
Jan de Boer1, Kyriakos Papadodimas, Erik Verlinde
1Institute for Theoretical Physics, University of Amsterdam, 1018 XE Amsterdam, The Netherlands. J.deBoer@uva.nl
Abstract:
Supersymmetric black holes are characterized by a large number of degenerate ground states. We argue that these black holes, like other quantum mechanical systems with such a degeneracy, are subject to a phenomenon which is called the geometric or Berry's phase: under adiabatic variations of the background values of the supergravity moduli, the quantum microstates of the black hole mix among themselves. We present a simple example where this mixing is exactly computable, that of small supersymmetric black holes in 5 dimensions.
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