Dualityinvariant nonextreme black holes in toroidally compactified string theory
Abstract
We present a dualityinvariant structure of the thermodynamic quantities of nonextreme black hole solutions of toroidally compactified Type II (Mtheory) and heterotic string in five and four dimensions. These quantities are parametrized by dualityinvariant combination of charges and the nonextremality parameter, which measures a deviation from the BPSsaturated limit. In particular, in D = 5 we find explicit S and Tduality [ Udualityinvariant expressions for solutions of toroidally compactified heterotic string [Type II string]. In D = 4, we consider general Sdualityinvariant expressions for nonextreme solutions of pure N = 4 supergravity and find to the leading order in nonextremality parameter the T and Sdualityinvariant expressions of toroidally compactified heterotic string. General nonextreme solutions of toroidally compactified string in D = 4 are awaiting further investigation.
 Publication:

Nuclear Physics B
 Pub Date:
 February 1997
 DOI:
 10.1016/S05503213(97)003799
 arXiv:
 arXiv:hepth/9703134
 Bibcode:
 1997NuPhB.505..291C
 Keywords:

 High Energy Physics  Theory
 EPrint:
 Reference added, 20 pages, no figures