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Cosmological model from the holographic equipartition law with a modified Rényi entropy
http://hdl.handle.net/2297/47897
http://hdl.handle.net/2297/47897b938f99d-398d-43bd-b109-401778a645f3
名前 / ファイル | ライセンス | アクション |
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TE-PR-KOMATSU-N-229.pdf (856.5 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-10-03 | |||||
タイトル | ||||||
タイトル | Cosmological model from the holographic equipartition law with a modified Rényi entropy | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Komatsu, Nobuyoshi
× Komatsu, Nobuyoshi |
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書誌情報 |
European Physical Journal C 巻 77, 号 4, p. 229, 発行日 2017-04-01 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1434-6044 | |||||
NCID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11188397 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1140/epjc/s10052-017-4800-2 | |||||
出版者 | ||||||
出版者 | European Physical Society / Springer | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Cosmological equations were recently derived by Padmanabhan from the expansion of cosmic space due to the difference between the degrees of freedom on the surface and in the bulk in a region of space. In this study, a modified Rényi entropy is applied to Padmanabhan’s ‘holographic equipartition law’, by regarding the Bekenstein–Hawking entropy as a nonextensive Tsallis entropy and using a logarithmic formula of the original Rényi entropy. Consequently, the acceleration equation including an extra driving term (such as a time-varying cosmological term) can be derived in a homogeneous, isotropic, and spatially flat universe. When a specific condition is mathematically satisfied, the extra driving term is found to be constant-like as if it is a cosmological constant. Interestingly, the order of the constant-like term is naturally consistent with the order of the cosmological constant measured by observations, because the specific condition constrains the value of the constant-like term. © 2017, The Author(s). | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://link.springer.com/article/10.1140%2Fepjc%2Fs10052-017-4800-2 |