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Phys. Rev. D 73, 044009 (2006) [10 pages]

Thermodynamics of static black objects in D dimensional Einstein-Gauss-Bonnet gravity with D-4 compact dimensions

C. Sahabandu,1 P. Suranyi,1 C. Vaz,1 and L. C. R. Wijewardhana1
1Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
Received 11 October 2005; revised 20 December 2005; published 7 February 2006

We investigate the thermodynamics of static black objects such as black holes, black strings and their generalizations to D dimensions ("black branes") in a gravitational theory containing the four-dimensional Gauss-Bonnet term in the action, with D-4 dimensions compactified torus. The entropies of black holes and black branes are compared to obtain information on the stability of these objects and to find their phase diagrams. We demonstrate the existence of a critical mass, which depends on the scale of the compactified dimensions, below which the black hole entropy dominates over the entropy of the black membrane.

©2006 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevD.73.044009
DOI: 10.1103/PhysRevD.73.044009
PACS: 04.50.+h; 04.70.Bw; 04.70.Dy
  • 04.50.+h
    Gravity in more than four dimensions, Kaluza–Klein theory, unified field theories; alternative theories of gravity
  • 04.70.Bw
    Classical black holes
  • 04.70.Dy
    Quantum aspects of black holes, evaporation, thermodynamics
  • YEAR: 2006
KEYWORDS: entropy, black holes, gravitation, space-time configurations

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