Fragmentation of black hole scaling throats in N=2 supergravity

Details Fragmentation of black hole scaling throats in N=2 supergravity Fragmentation of black hole scaling throats in N=2 supergravity

2011-12-20

arxiv.org/abs/1112.4685v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

12 pages

Scientific paper

We find an instanton analogous to the Brill instanton that describes the fragmentation of a single-centered black hole scaling throat of charge $\Gamma_1 + \Gamma_2 + \Gamma_3$ in N=2 supergravity to three disconnected throats of charges $\Gamma_1, \Gamma_2, \Gamma_3$, in the limit where the intersection products between the charges of the three throats satisfies $<\Gamma_1, \Gamma_2> \lll <\Gamma_2, \Gamma_3>, <\Gamma_3, \Gamma_1,>$. We evaluate the Euclidean action for this instanton and find that the amplitude for the tunneling process is proportional to the difference in entropy between the initial and final configurations.

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