What We Don't Know about BTZ Black Hole Entropy
Abstract
With the recent discovery that many aspects of black hole thermodynamics can be effectively reduced to problems in three spacetime dimensions, it has become increasingly important to understand the ``statistical mechanics'' of the (2+1)-dimensional black hole of Banados, Teitelboim, and Zanelli (BTZ). Several conformal field theoretic derivations of the BTZ entropy exist, but none is completely satisfactory, and many questions remain open: there is no consensus as to what fields provide the relevant degrees of freedom or where these excitations live. In this paper, I review some of the unresolved problems and suggest avenues for their solution.
Keywords
Cite
@article{arxiv.hep-th/9806026,
title = {What We Don't Know about BTZ Black Hole Entropy},
author = {S. Carlip},
journal= {arXiv preprint arXiv:hep-th/9806026},
year = {2010}
}
Comments
24 pages, LaTeX, no figures; references added, brief discussion of relation to string theory added; to appear in Class. Quant. Grav