paper

Two dimensional black-hole as a topological coset model of c=1 string theory

arXiv:hep-th/9301083 · doi:10.1016/0550-3213(93)90094-6

Abstract

We show that a special superconformal coset (with ) is equivalent to matter coupled to two dimensional gravity. This identification allows a direct computation of the correlation functions of the non-critical string to all genus, and at nonzero cosmological constant, directly from the continuum approach. The results agree with those of the matrix model. Moreover we connect our coset with a twisted version of a Euclidean two dimensional black hole, in which the ghost and matter systems are mixed.

51 pages. Appendix by E. Frenkel

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