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Bouncing universes in string-inspired gravity

delete2006-03-13
delete469
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OA
AI
B
Biswas, T
M
Mazumdar, A
S
Siegel, W
DOI:10.1088/1475-7516/2006/03/009delete
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摘要

摘要

En 中文
We consider the effects on cosmology of higher derivative modi. cations of gravity that make it asymptotically free without introducing ghosts. The weakening of gravity at short distances allows pressure to prevent a singularity, producing a solution with contraction preceding expansion.
Keyword:
string theory and cosmology
gravity
quantum gravity phenomenology
physics of the early universe
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期刊

Journal of Cosmology and Astroparticle Physics 封面图
Journal of Cosmology and Astroparticle Physics
IF:
5.9
论文数:
1.3W
被引数:
4.7W

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