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Bounce universe history from unimodular F(R) gravity
http://hdl.handle.net/2237/24920
http://hdl.handle.net/2237/24920355262a4-fbe5-4868-9a33-c5a87ff42ad0
名前 / ファイル | ライセンス | アクション |
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PhysRevD93B.pdf (349.7 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2016-09-29 | |||||
タイトル | ||||||
タイトル | Bounce universe history from unimodular F(R) gravity | |||||
言語 | en | |||||
著者 |
Nojiri, S.
× Nojiri, S.× Odintsov, S. D.× Oikonomou, V. K. |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | © 2016 American Physical Society | |||||
抄録 | ||||||
内容記述 | In this paper we investigate how to realize various quite well-known cosmological bouncing models in the context of the recently developed unimodular F(R) gravity. Particularly, we shall study the matter bounce scenario, the singular bounce, the superbounce and a symmetric bounce scenario. We present the behavior of the Hubble radius for each of the bouncing models we shall take into account, and we investigate which era of the bouncing model is responsible for the cosmological perturbations. As we shall demonstrate, the various bouncing models do not behave in the same way, so the cosmological perturbations for each model may correspond to a different era, in comparison to other models. Also we present which unimodular F(R) gravity realizes each model. We also show that Newton’s law is not modified in the unimodular F(R) gravity, which also is proven to be a ghost-free theory, and in addition we discuss the matter stability issue. Finally, we demonstrate how it is possible to solve a cosmological constant problem in the context of unimodular F(R) gravity. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
出版者 | ||||||
言語 | en | |||||
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 | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1103/PhysRevD.93.084050 | |||||
ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 2470-0010 | |||||
書誌情報 |
en : Physical Review D 巻 93, p. 084050-084050, 発行日 2016-04 |
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著者版フラグ | ||||||
値 | publisher | |||||
URI | ||||||
識別子 | http://doi.org/10.1103/PhysRevD.93.084050 | |||||
識別子タイプ | DOI | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/24920 | |||||
識別子タイプ | HDL |