Black String Entropy from Anomalous D-brane Couplings

Details Black String Entropy from Anomalous D-brane Couplings Black String Entropy from Anomalous D-brane Couplings

1998-05-05

arxiv.org/abs/hep-th/9805027v3

Eur.Phys.J.C13:641-646,2000

Physics

High Energy Physics

High Energy Physics - Theory

12 pages, LaTeX; Corrections and clarifying comments added

Scientific paper

10.1007/s100520050722

The quantum corrections to the counting of statistical entropy for the 5+1-dimensional extremal black string in type-IIB supergravity with two observers are studied using anomalous Wess-Zumino actions for the corresponding intersecting D-brane description. The electric-magnetic duality symmetry of the anomalous theory implies a new symmetry between D-string and D-fivebrane sources and renders opposite sign for the RR charge of one of the intersecting D-branes relative to that of the black string. The electric-magnetic symmetric Hilbert space decomposes into subspaces associated with interior and exterior regions and it is shown that, for an outside observer, the expectation value of a horizon area operator agrees with the deviation of the classical horizon area in going from extremal to near-extremal black strings.

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