Homotopy Operators and One-Loop Vacuum Energy at the Tachyon Vacuum(Particles and Fields)
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概要
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We construct homotopy operators for the BRST operator in the theory around identity-based solutions, which are believed to represent the tachyon vacuum in the cubic bosonic open string field theory. Using the homotopy operators, we find that the one-loop vacuum energy at the tachyon vacuum is independent of moduli such as interbrane distances, which are included in the BRST operator. We also revisit the cohomology problem, which was solved earlier without the homotopy operators.
- 2011-12-25
著者
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Takahashi Tomohiko
Department Of Physics Kyoto University
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Inatomi Shoko
Department Of Physics Nara Women's University
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Kishimoto Isao
Faculty Of Education Niigata University
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