A Note on Acceleration from Product Space Compactification

Details A Note on Acceleration from Product Space Compactification A Note on Acceleration from Product Space Compactification

2003-04-21

arxiv.org/abs/hep-th/0304177v3

JHEP 0307 (2003) 017

Physics

High Energy Physics

High Energy Physics - Theory

19 pages, 6 figures, v2: further comments and references added, v3: typos fixed

Scientific paper

10.1088/1126-6708/2003/07/017

We study compactifications of Einstein gravity on product spaces in vacuum and their acceleration phases. Scalar potentials for the dimensionally reduced effective theory are found to be of exponential form and exact solutions are obtained for a class of product spaces. The inflation in our solutions is not sufficient for the early universe. We comment on the possibility of obtaining sufficient inflation by compactification in general.

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