Lifshitz black holes in string theory

Details Lifshitz black holes in string theory Lifshitz black holes in string theory

2011-05-24

arxiv.org/abs/1105.4862v2

JHEP 1107:004,2011

Physics

High Energy Physics

High Energy Physics - Theory

19 pages, 7 figures. v2 references added

Scientific paper

We provide the first black hole solutions with Lifshitz asymptotics found in string theory. These are expected to be dual to models enjoying anisotropic scale invariance with dynamical exponent z=2 at finite temperature. We employ a consistent truncation of type IIB supergravity to four dimensions with an arbitrary 5-dimensional Einstein manifold times a circle as internal geometry. New interesting features are found that significantly differ from previous results in phenomenological models. In particular, small black holes are shown to be thermodynamically unstable, analogously to the usual AdS-Schwarzschild black holes, and extremality is never reached. This signals a possible Hawking-Page like phase transition at low temperatures.

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