NearExtremal Spherically Symmetric Black Holes in an ArbitraryDimensional Spacetime
Abstract
In a recent paper (hepth/0111091), the nearextremal thermodynamics of a 4dimensional ReissnerNordstrom black hole had been considered. In the current letter, we extend this prior treatment to the more general case of a spherically symmetric, charged black hole of arbitrary dimensionality. After summarizing the earlier work, we demonstrate a duality that exists between the nearextremal sector of spherically symmetric black holes and JackiwTeitelboim theory. On the basis of this correspondence, we argue that backreaction effects prohibit any of these ``RNlike'' black holes from reaching extremality and, moreover, from coming arbitrarily close to an extremal state.
 Publication:

arXiv eprints
 Pub Date:
 December 2001
 arXiv:
 arXiv:hepth/0112056
 Bibcode:
 2001hep.th...12056M
 Keywords:

 High Energy Physics  Theory
 EPrint:
 15 pages, Latex