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Phys. Rev. D 68, 104011 (2003) [4 pages]

Black hole entropy associated with the supersymmetric sigma model

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M. C. B. Abdalla
Instituto de Física Teórica/UNESP, São Paulo, SP, Brazil

A. A. Bytsenko
Departamento de Física, Univ. Estadual de Londrina, Londrina, PR, Brazil

M. E. X. Guimarães
Instituto de Física Teórica/UNESP, São Paulo, SP, Brazil
Departamento de Matemática, UnB, Brasília, DF, Brazil

Received 5 June 2003; published 14 November 2003

By means of an identity that equates the elliptic genus partition function of a supersymmetric sigma model on the N-fold symmetric product SNX of X (SNX=XN/SN, where SN is the symmetric group of N elements) to the partition function of a second-quantized string theory, we derive the asymptotic expansion of the partition function as well as the asymptotic for the degeneracy of spectrum in string theory. The asymptotic expansion for the state counting reproduces the logarithmic correction to the black hole entropy.

© 2003 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.68.104011
DOI:
10.1103/PhysRevD.68.104011
PACS:
04.70.Dy, 11.25.Mj