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Description
Inspired by the Randall-Sundrum brane-world scenario, we investigate the possibility of brane-world inflation driven not by an inflaton field on the brane, but by a bulk, dilaton-like gravitational field. As a toy model for the dilaton-like gravitational field, we consider a minimally coupled massive scalar field in the bulk 5-dimensional spacetime, and look for a perturbative solution in the anti-de Sitter (AdS) background. For an adequate range of the scalar field mass, we find a unique solution that has non-trivial dependence on the 5th dimensional coordinate and that induces slow-roll inflation on the brane.
10 pages, 2 figures, final version, to be published in Phys. Rev. D
Journal
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- Physical Review D
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Physical Review D 63 2001-01-25
American Physical Society (APS)
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Keywords
Details 詳細情報について
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- CRID
- 1870020693121605888
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- ISSN
- 10894918
- 05562821
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- Data Source
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- OpenAIRE