Scattering of a tachyon by a two-dimensional black hole

Details Scattering of a tachyon by a two-dimensional black hole Scattering of a tachyon by a two-dimensional black hole

Sep 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994phrvd..50.3942k&link_type=abstract

Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 50, Issue 6, 15 September 1994, pp.3942-3948

Physics

13

Classical Black Holes, Properties Of Perturbation Theory, Exact S Matrices

Scientific paper

We study the scattering process of a black hole in two-dimensional string theory at the tree level. Unlike the higher-dimensional black holes, the linearized equations of motion lead to exactly solvable one-dimensional Schrödinger-type equations for the unit of M=1 (M is the black hole mass). Considering the asymptotic form of the solutions, the exact S matrices are derived for the combined graviton-dilaton mode as well as the tachyon mode. We confirm that only the tachyon mode plays an important role in extracting any information for the black hole.

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