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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

Class of viable modified f(R) gravities describing inflation and the onset of accelerated expansion

http://hdl.handle.net/2237/11275
http://hdl.handle.net/2237/11275
c449b4c5-3a82-426f-b4e1-1670d487120d
名前 / ファイル ライセンス アクション
PhysRevD_77_046009.pdf PhysRevD_77_046009.pdf (248.5 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2009-03-09
タイトル
タイトル Class of viable modified f(R) gravities describing inflation and the onset of accelerated expansion
言語 en
著者 Cognola, G.

× Cognola, G.

WEKO 27033

en Cognola, G.

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Elizalde, E.

× Elizalde, E.

WEKO 27034

en Elizalde, E.

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Nojiri, S.

× Nojiri, S.

WEKO 27035

en Nojiri, S.

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Odintsov, S. D.

× Odintsov, S. D.

WEKO 27036

en Odintsov, S. D.

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Sebastiani, L.

× Sebastiani, L.

WEKO 27037

en Sebastiani, L.

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Zerbini, S.

× Zerbini, S.

WEKO 27038

en Zerbini, S.

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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 American Physical Society, All rights reserved.
抄録
内容記述 A general approach to viable modified f(R) gravity is developed in both the Jordan and the Einstein frames. A class of exponential,realistic modified gravities is introduced and investigated with care. Special focus is made on step-class models, most promising from the phenomenological viewpoint and which provide a natural way to classify all viable modified gravities. One- and two-step models are explicitly considered, but the analysis is extensible to N-step models. Both inflation in the early universe and the onset of recent accelerated expansion arise in these models in a natural,unified way. Moreover,it is demonstrated that models in this category easily pass all local tests,including stability of spherical body solution, nonviolation of Newton's law, and generation of a very heavy positive mass for the additional scalar degree of freedom.
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.77.046009
ISSN
収録物識別子タイプ PISSN
収録物識別子 1550-7998
書誌情報 en : PHYSICAL REVIEW D

巻 77, 号 4, p. 046009-046009, 発行日 2008-02
フォーマット
application/pdf
著者版フラグ
値 publisher
URI
識別子 http://hdl.handle.net/2237/11275
識別子タイプ HDL
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