Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2006-06-25
Phys.Rev.D74:084016,2006
Physics
High Energy Physics
High Energy Physics - Theory
15 pages, 5 figures
Scientific paper
10.1103/PhysRevD.74.084016
We construct a class of charged, rotating solutions of (n+1)-dimensional Einstein-Maxwell-dilaton gravity with Liouville-type potentials and investigate their properties. These solutions are neither asymptotically flat nor (anti)-de Sitter. We find that these solutions can represent black brane, with two inner and outer event horizons, an extreme black brane or a naked singularity provided the parameters of the solutions are chosen suitably. We also compute temperature, entropy, charge, electric potential, mass and angular momentum of the black brane solutions, and find that these quantities satisfy the first law of thermodynamics. We find a Smarr-type formula and perform a stability analysis by computing the heat capacity in the canonical ensemble. We find that the system is thermally stable for alpha <1, while for alpha >1 the system has an unstable phase. This is incommensurate with the fact that there is no Hawking-Page phase transition for black objects with zero curvature horizon.
Dehghani M. H.
Pakravan J.
Riazi Nematollah
Sheykhi Ahmad
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