Late-time Cosmic Dynamics from M-theory
arXiv:hep-th/0311173 · doi:10.1088/0264-9381/21/9/015
Abstract
We consider the behaviour of the cosmological acceleration for time-dependent hyperbolic and flux compactifications of M-theory, with an exponential potential. For flat and closed cosmologies it is seen that a positive acceleration is always transient for both compactifications. For open cosmologies, both compactifications can give at late times periods of positive acceleration. As a function of proper time this acceleration has a power law decay and can be either positive, negative or oscillatory.
10 pages, LaTeX, 2 figures
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