期刊
PHYSICS LETTERS B
卷 710, 期 1, 页码 12-16出版社
ELSEVIER
DOI: 10.1016/j.physletb.2012.02.075
关键词
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资金
- Humboldt Foundation at the Physics Department of the Ludwig-Maximilians University in Munich
- RFBR [11-02-00512]
We suggest a class of generally covariant ghost-free nonlocal gravity models generating de Sitter or anti-de Sitter background with an arbitrary value of the effective cosmological constant and featuring a mechanism of dark matter simulation. These models interpolate between the general relativistic phase on a flat spacetime background and their strongly coupled infrared (anti-)de Sitter phase with two propagating massless graviton modes. (C) 2012 Elsevier B.V. All rights reserved.
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