Black holes and elementary string states in N=2 supersymmetric string theories

Sen, Ashoke (1998) Black holes and elementary string states in N=2 supersymmetric string theories Journal of High Energy Physics, 1998 (2). No pp. given. ISSN 1126-6708

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Official URL: http://iopscience.iop.org/1126-6708/1998/02/011?fr...

Related URL: http://dx.doi.org/10.1088/1126-6708/1998/02/011

Abstract

We compare the logarithm of the degeneracy of BPS saturated elementary string states and the string modified Bekenstein-Hawking entropy of the corresponding black holes in N=2 supersymmetric heterotic string compactification to four dimensions. As in the case of N=4 supersymmetric theory, the two results match up to an overall undetermined numerical factor. We also show that this undetermined numerical constant is identical in the N=2 and N=4 supersymmetric theories, therby showing that the agreement between the Bekenstein-Hawking entropy and the microscopic entropy for N=2 theories does not require any new identity, other than the one already required for the N=4 theory. A similar result holds for type II string compactification as well.

Item Type:Article
Source:Copyright of this article belongs to Institute of Physics.
Keywords:Superstrings and Heterotic Strings; Black Holes in String Theory
ID Code:44045
Deposited On:20 Jun 2011 10:01
Last Modified:18 May 2016 00:51

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