Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2004-12-06
Phys.Rev. D71 (2005) 044008
Physics
High Energy Physics
High Energy Physics - Theory
14 pages, no figure, references added, the version to appear in Phys. Rev. D
Scientific paper
10.1103/PhysRevD.71.044008
In this paper we, first, present a class of charged rotating solutions in four-dimensional Einstein-Maxwell-dilaton gravity with zero and Liouville-type potentials. We find that these solutions can present a black hole/string with two regular horizons, an extreme black hole or a naked singularity provided the parameters of the solutions are chosen suitable. We also compute the conserved and thermodynamic quantities, and show that they satisfy the first law of thermodynamics. Second, we obtain the ($n+1$%)-dimensional rotating solutions in Einstein-dilaton gravity with Liouville-type potential. We find that these solutions can present black branes, naked singularities or spacetimes with cosmological horizon if one chooses the parameters of the solutions correctly. Again, we find that the thermodynamic quantities of these solutions satisfy the first law of thermodynamics.
Dehghani M. H.
Farhangkhah N.
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