期刊
EUROPEAN PHYSICAL JOURNAL C
卷 76, 期 2, 页码 -出版社
SPRINGER
DOI: 10.1140/epjc/s10052-016-3924-0
关键词
-
资金
- Inje University Research Grant
We obtain scale-invariant scalar and tensor power spectra from a Weyl-invariant scalar-tensor theory in de Sitter spacetime. This implies that the Weyl invariance guarantees the implementation of the scale invariance of the power spectrum in de Sitter spacetime. We establish a deep connection between the Weyl invariance of the action and the scale invariance of the power spectrum in de Sitter spacetime.
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