Black-hole thermodynamics in Lovelock gravity

Details Black-hole thermodynamics in Lovelock gravity Black-hole thermodynamics in Lovelock gravity

Oct 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988phrvd..38.2434m&link_type=abstract

Physical Review D (Particles and Fields), Volume 38, Issue 8, 15 October 1988, pp.2434-2444

Other

191

Gravity In More Than Four Dimensions, Kaluza-Klein Theory, Unified Field Theories, Alternative Theories Of Gravity, Field Theories In Dimensions Other Than Four, Black Holes

Scientific paper

The thermodynamic properties of black holes in Lovelock gravity are examined. In particular, the case of the Einstein Lagrangian plus the four-dimensional Euler density is discussed in detail. In five dimensions, one finds that the specific heat of a black hole becomes positive at small mass, allowing the black hole to achieve stable equilibrium with its environment and giving it an infinite lifetime. This behavior is not universal, however, but it always occurs in 2k+1 dimensions for a Lovelock theory including the 2k-dimensional Euler density. For theories including six-derivative or higher-order interactions, black holes with degenerate zero-temperature horizons are also possible.

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