BRST analysis of physical states in a two-dimensional black hole.
نویسندگان
چکیده
We study the BRST cohomology for SL(2, R)/U(1) coset model, which describes an exact string black hole solution. It is shown that the physical spectrum could contain not only the extra discrete states corresponding to those in c = 1 two-dimensional gravity but also many additional new states with ghost number NFP = −1 ∼ 2. We also discuss characters for nonunitary reps. and the relation of our results to other approaches.
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عنوان ژورنال:
- Physical review. D, Particles and fields
دوره 48 8 شماره
صفحات -
تاریخ انتشار 1993