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Topological black holes in pure Gauss-Bonnet gravity and phase transitions

Authors
  • Aránguiz, Ligeia
  • Kuang, Xiao-Mei
  • Miskovic, Olivera
Type
Published Article
Publication Date
Mar 16, 2016
Submission Date
Jul 08, 2015
Identifiers
DOI: 10.1103/PhysRevD.93.064039
Source
arXiv
License
Yellow
External links

Abstract

We study charged, static, topological black holes in pure Gauss-Bonnet gravity in asymptotically AdS space. As in general relativity, the theory possesses a unique nondegenerate AdS vacuum. It also admits charged black hole solutions which asymptotically behave as the Reissner-Nordstr\"{o}m AdS black hole. We discuss black hole thermodynamics of these black holes. Then we study phase transitions in a dual quantum field theory in four dimensions, with the St\"{u}ckelberg scalar field as an order parameter. We find in the probe limit that the black hole can develop hair below some critical temperature, which suggests a phase transition. Depending on the scalar coupling constants, the phase transition can be first or second order. Analysis of the free energy reveals that, comparing the two solutions, the hairy state is energetically favorable, thus a phase transition will occur in a dual field theory.

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