Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2008-11-22
Phys.Rev.D78:124005,2008
Physics
High Energy Physics
High Energy Physics - Theory
7 Pages, Revtex, To appear in Phys.Rev.D
Scientific paper
10.1103/PhysRevD.78.124005
Considering a generalised action for Einstein Maxwell theory in four dimensions coupled to scalar and pseudo-scalar fields, the thermodynamic properties of asymptotically flat black holes solutions in such a background are investigated. Bekenstein-Hawking area-entropy law is verified for these class of black holes. From the property of specific heat, it is shown that such black holes can be stable for certain choice of the parameters like charge, mass and the scalar vacuum expectation value. The possibility of a black hole phase transition is discussed in this context.
Ghosh Tanwi
SenGupta Soumitra
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