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  1. B100 理学部/理学研究科
  2. B100a 雑誌掲載論文
  3. 学術雑誌

Bounce universe history from unimodular F(R) gravity

http://hdl.handle.net/2237/24920
355262a4-fbe5-4868-9a33-c5a87ff42ad0
名前 / ファイル ライセンス アクション
PhysRevD93B.pdf PhysRevD93B.pdf (349.7 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2016-09-29
タイトル
タイトル Bounce universe history from unimodular F(R) gravity
著者 Nojiri, S.

× Nojiri, S.

WEKO 67010

Nojiri, S.

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Odintsov, S. D.

× Odintsov, S. D.

WEKO 67011

Odintsov, S. D.

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Oikonomou, V. K.

× Oikonomou, V. K.

WEKO 67012

Oikonomou, V. K.

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権利
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.
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 2470-0010
書誌情報 Physical Review D

巻 93, p. 084050-084050, 発行日 2016-04
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
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