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BRS structure of simple model of cosmological constant and cosmology
http://hdl.handle.net/2237/26988
7e7fe876-5bf3-4658-b447-4a9c100d1d32
名前 / ファイル | ライセンス | アクション | |
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-10-04 | |||||
タイトル | ||||||
タイトル | BRS structure of simple model of cosmological constant and cosmology | |||||
著者 |
Mori, Taisaku
× Mori, Taisaku× Nitta, Daisuke× Nojiri, Shin’ichi |
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権利 | ||||||
権利情報 | © 2017 American Physical Society | |||||
抄録 | ||||||
内容記述 | In Mod. Phys. Lett. A 31, 1650213 (2016), Nojiri proposed a simple model in order to solve one of the problems related to the cosmological constant. The model is induced from a topological field theory, and the model has an infinite number of BRS symmetries. The BRS symmetries are, in general, spontaneously broken, however. We investigate the BRS symmetry in detail and show that there is one and only one BRS symmetry which is not broken, and the unitarity can be guaranteed. In the model, the quantum problem of the vacuum energy, which may be identified with the cosmological constant, reduces to the classical problem of the initial condition. We investigate the cosmology given by the model and specify the region of the initial conditions, which could be consistent with the evolution of the Universe. We also show that there is a stable solution describing the de Sitter space-time, which may explain the accelerating expansion in the current Universe. | |||||
内容記述タイプ | Abstract | |||||
出版者 | ||||||
出版者 | American Physical Society | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2470-0029 | |||||
書誌情報 |
Physical Review D 巻 96, p. 024009-024009, 発行日 2017-07-15 |
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著者版フラグ | ||||||
値 | publisher | |||||
URI | ||||||
識別子 | https://doi.org/10.1103/PhysRevD.96.024009 | |||||
識別子タイプ | DOI | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/26988 | |||||
識別子タイプ | HDL |