BRST analysis of physical states in a two-dimensional black hole.
BRST analysis of physical states in a two-dimensional black hole.
复制标题
二维黑洞物理状态的 BRST 分析。
DOI:
10.1103/physrevd.48.3793
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发表时间:
1993
期刊:
影响因子:
--
通讯作者:
Sakaguchi
中科院分区:
文献类型:
--
作者:
Itoh;Kunitomo;Ohta;Sakaguchi
We study the BRST cohomology for an SL(2,[ital 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 [ital c]=1 two-dimensional gravity but also many additional new states with a ghost number [ital N][sub FP]=[minus]1 to 2. We also discuss characters for nonunitary representations and the relation of our results to other approaches.