Thermodynamic properties of massive dilaton black holes

Details Thermodynamic properties of massive dilaton black holes Thermodynamic properties of massive dilaton black holes

Oct 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001phrvd..64h4002t&link_type=abstract

Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 64, Issue 8, 15 October 2001, id.084002

Physics

1

Physics Of Black Holes, Self-Gravitating Systems, Continuous Media And Classical Fields In Curved Spacetime, Thermodynamic Processes, Conduction, Convection, Equations Of State, Black Holes

Scientific paper

We numerically reanalyze static and spherically symmetric black hole solutions in an Einstein-Maxwell-dilaton system with a dilaton potential. We consider two types of potentials: m2dφ2 and m2dS2(S-1)2eS-1/4 where S≔e-2φ, which is proposed based on gluino condensation. We investigate thermodynamic properties in both cases and find that the black hole becomes an extreme solution for a finite horizon radius when a dilaton potential does not vanish. As a result, the Hawking temperature approaches zero in the extreme limit whereas it approaches a finite nonzero value in this limit for the massless dilaton case. This implies that a small amount of the dilaton mass changes the final fate of the black hole.

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