The string spectrum on the horizon of a non-extremal black hole

Details The string spectrum on the horizon of a non-extremal black hole The string spectrum on the horizon of a non-extremal black hole

1996-06-06

arxiv.org/abs/hep-th/9606031v2

Nucl.Phys. B481 (1996) 743-757

Physics

High Energy Physics

High Energy Physics - Theory

17 pages, harvmac (minor corrections)

Scientific paper

10.1016/S0550-3213(96)00529-9

We investigate the conformal string $\sigma $-model corresponding to a general five-dimensional non-extremal black hole solution. In the horizon region the theory reduces to an exactly solvable conformal field theory. We determine the modular invariant spectrum of physical string states, which expresses the Rindler momentum operator in terms of three charges and string oscillators. For black holes with winding and Kaluza-Klein charges, we find that states made with only right-moving excitations have ADM mass equal to the black hole ADM mass, and thus they can be used as sources of the gravitational field. A discussion on statistical entropy is included.

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