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タイトル: | BV analysis of tachyon fluctuation around multi-brane solutions in cubic string field theory |
著者: | Hata, Hiroyuki |
著者名の別形: | 畑, 浩之 |
キーワード: | BRST Quantization D-branes String Field Theory Tachyon Condensation |
発行日: | May-2016 |
出版者: | Springer Verlag |
誌名: | Journal of High Energy Physics |
巻: | 2016 |
論文番号: | 22 |
抄録: | Abstract: We study whether the tachyon mode exists as a physical fluctuation on the 2-brane solution and on the tachyon vacuum solution in cubic open string field theory. Our analysis is based on the Batalin-Vilkovisky formalism. We first construct a set of six string states which corresponds to the set of fields and anti-fields containing the tachyon field. Whether the tachyon field can exist as a physical fluctuation is determined by the 6 × 6 matrix defining the anti-bracket in the present sector. If the matrix is degenerate/non-degenerate, the tachyon field is physical/unphysical. Calculations for the pure-gauge type solutions in the framework of the KBc algebra and using the Kε-regularization lead to the expected results. Namely, the matrix for the anti-bracket is degenerate/non-degenerate in the case of the 2-brane/tachyon-vacuum solution. Our analysis is not complete, in particular, in that we have not identified the four-fold degeneracy of tachyon fluctuation on the 2-brane solution, and moreover that the present six states do not satisfy the hermiticity condition. |
著作権等: | © The Authors. JHEP is an open-access journal funded by SCOAP3 and licensed under CC BY 4.0 |
URI: | http://hdl.handle.net/2433/216031 |
DOI(出版社版): | 10.1007/JHEP05(2016)022 |
出現コレクション: | 学術雑誌掲載論文等 |
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