Bouncing Universes in String-inspired Gravity

Biswas, Tirthabir and Mazumdar, Anupam and Siegel, Warren (2006) Bouncing Universes in String-inspired Gravity. Journal of Cosmology and Astroparticle Physics, 2006 (3). ISSN 1475-7516

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Abstract

We consider the effects on cosmology of higher-derivative modifications of (effective) gravity that make it asymptotically free without introducing ghosts. The weakening of gravity at short distances allows pressure to prevent the singularity, producing a solution with contraction preceding expansion.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Cosmology and Astroparticle Physics
Additional Information:
28 pages, 2 figures; v2: added references
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3103
Subjects:
ID Code:
63501
Deposited By:
Deposited On:
19 Apr 2013 09:09
Refereed?:
Yes
Published?:
Published
Last Modified:
04 Jul 2020 01:47