Flat information geometries in black hole thermodynamics
2006 (English)In: General Relativity and Gravitation, ISSN 0001-7701, Vol. 38, no 8, 1305-1315 p.Article in journal (Refereed) Published
The Hessian of either the entropy or the energy function can be regarded as a metric on a Gibbs surface. For two parameter families of asymptotically flat black holes in arbitrary dimension one or the other of these metrics are flat, and the state space is a flat wedge. The mathematical reason for this is traced back to the scale invariance of the Einstein–Maxwell equations. The picture of state space that we obtain makes some properties such as the occurence of divergent specific heats transparent.
Place, publisher, year, edition, pages
2006. Vol. 38, no 8, 1305-1315 p.
IdentifiersURN: urn:nbn:se:su:diva-15202DOI: 10.1007/s10714-006-0306-1OAI: oai:DiVA.org:su-15202DiVA: diva2:181722