Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2008-09-30
Phys.Rev.Lett.103:131301,2009
Physics
High Energy Physics
High Energy Physics - Theory
4 pages
Scientific paper
10.1103/PhysRevLett.103.131301
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. While in practice it would be extremely difficult to measure Berry's phase for black holes, it may be interesting to explore it further from a theoretical point of view, as it provides us with a way to probe, and to some degree manipulate, the quantum microstate of the black hole.
Boer Jan de
Papadodimas Kyriakos
Verlinde Erik
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