Recurrent Acceleration in Dilaton-Axion Cosmology
arXiv:hep-th/0608068 · doi:10.1103/PhysRevD.74.103508
Abstract
A class of Einstein-dilaton-axion models is found for which almost all flat expanding homogeneous and isotropic universes undergo recurrent periods of acceleration. We also extend recent results on eternally accelerating open universes.
8 pages, 7 figures. minor changes. Version 4 corrects a figure caption
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