| タイトル |
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From conformal field theory spectra to CMB multipoles in quantum gravity cosmology
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From conformal field theory spectra to CMB multipoles in quantum gravity cosmology
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| 作成者 |
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| アクセス権 |
metadata only access |
| 権利情報 |
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© 2010 The American Physical Society
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| 内容注記 |
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Abstract
We study the inflation process of the Universe based on the renormalizable quantum gravity formulated as a conformal field theory. We show that the power-law conformal field theory spectrum approaches that of the Harrison-Zel’dovich-Peebles–type as the amplitude of gravitational potential gradually reduces during the inflation. The non-Gaussanity parameter is preserved within an order of unity due to the diffeomorphism invariance. Sharp falloff of the angular power spectrum of cosmic microwave background at large scale is understood as a consequence of the existence of dynamical scale of the quantum gravity ΛQG(≃1017 GeV). The angular power spectra are computed and compared with the WMAP5 and ACBAR data with a quality of χ2/dof≃1.1.
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| 出版者 |
American Physical Society
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| 日付 |
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| 言語 |
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| 資源タイプ |
journal article |
| 資源識別子 |
URI
https://ir.soken.ac.jp/records/3337
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| 関連 |
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DOI
https://doi.org/10.1103/PhysRevD.81.083533
10.1103/PhysRevD.81.083533
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| 収録誌情報 |
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Physical Review D - Particles, Fields, Gravitation and Cosmology
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Physical Review D - Particles, Fields, Gravitation and Cosmology
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巻81
号8
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| コンテンツ更新日時 |
2023-08-18 |
