Strings on a cone and black hole entropy

Dabholkar, Atish (1995) Strings on a cone and black hole entropy Nuclear Physics B, 439 (3). pp. 650-664. ISSN 0550-3213

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String propagation on a cone with deficit angle 2π (1 - 1/N) is described by constructing a non-compact orbifold of a plane by a ZN subgroup of rotations. It is modular invariant and has tachyons in the twisted sectors that are localized at the tip of the cone. A possible connection with the quantum corrections to the black hole entropy is outlined. The entropy computed by analytically continuing in N would receive contribution only from the twisted sectors and be naturally proportional to the area of the event horizon. Evidence is presented for a new duality for these orbifolds similar to the R →1/R duality.

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Source:Copyright of this article belongs to Elsevier Science.
ID Code:8159
Deposited On:26 Oct 2010 11:37
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