Remarks on Black Hole Instabilities and Closed String Tachyons

Details Remarks on Black Hole Instabilities and Closed String Tachyons Remarks on Black Hole Instabilities and Closed String Tachyons

2002-11-22

arxiv.org/abs/hep-th/0211212v1

Found.Phys. 33 (2003) 145-165

Physics

High Energy Physics

High Energy Physics - Theory

harvmac, 20 pp, 4 eps figures. Contribution to Jacob Bekenstein's Festschrift

Scientific paper

Physical arguments stemming from the theory of black-hole thermodynamics are used to put constraints on the dynamics of closed-string tachyon condensation in Scherk--Schwarz compactifications. A geometrical interpretation of the tachyon condensation involves an effective capping of a noncontractible cycle, thus removing the very topology that supports the tachyons. A semiclassical regime is identified in which the matching between the tachyon condensation and the black-hole instability flow is possible. We formulate a generalized correspondence principle and illustrate it in several different circumstances: an Euclidean interpretation of the transition from strings to black holes across the Hagedorn temperature and instabilities in the brane-antibrane system.

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