Two-dimensional black hole in the three-dimensional black string

Details Two-dimensional black hole in the three-dimensional black string Two-dimensional black hole in the three-dimensional black string

Aug 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995phrvd..52.2214l&link_type=abstract

Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 52, Issue 4, 15 August 1995, pp.2214-2220

Physics

5

Classical Black Holes, Lower Dimensional Models, Minisuperspace Models, Properties Of Perturbation Theory, Noncritical String Theory

Scientific paper

We discuss the two-dimensional black hole in the (2+1)-dimensional black string. When the charge of the black string Q=0 and thus the torsion Hμνρ vanishes, a black string with double horizons becomes a simple product of a two-dimensional (2D) black hole with a single horizon and R. It is shown that the two propagating modes are the dilaton and tachyon in a 3D black string background, and L=h-φ and the tachyon in a 2D black hole ⊗R background. We also calculate the reflection and transmission coefficients for the scattering of string fields off 2D black holes. Using the Bogoliubov transformation we find the Hawking temperature from the reflection coefficient of the tachyon.

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