2004年12月
Solvable time-dependent model and rolling closed string tachyon
PHYSICAL REVIEW D
- ,
- 巻
- 70
- 号
- 12
- 開始ページ
- 126013-1-126013-11
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/PhysRevD.70.126013
- 出版者・発行元
- AMER PHYSICAL SOC
We investigate the SL(2,R)/U(1) WZW model with level 0<k<2 as a solvable time-dependent background in string theory. This model is expected to be dual to the one describing a rolling closed string tachyon with a timelike linear dilaton. We examine its exact metric and minisuperspace wave functions. Two point functions and the one-loop vacuum amplitude are computed and their relation to the closed string emission is discussed. Comparing with the results from the minisuperspace approximation, we find a physical interpretation of our choice to continue the Euclidean model into the Lorentzian one. Three point functions are also examined.
- リンク情報
- ID情報
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- DOI : 10.1103/PhysRevD.70.126013
- ISSN : 2470-0010
- eISSN : 2470-0029
- Web of Science ID : WOS:000226054800110