Wrapped Branes and Compact Extra Dimensions in Cosmology

Details Wrapped Branes and Compact Extra Dimensions in Cosmology Wrapped Branes and Compact Extra Dimensions in Cosmology

2003-01-07

arxiv.org/abs/hep-th/0301031v3

Phys.Lett. B565 (2003) 19-26

Physics

High Energy Physics

High Energy Physics - Theory

6 pages, RevTex4, added a figure, section IV rewritten, conclusions unaltered

Scientific paper

10.1016/S0370-2693(03)00760-3

We present a cosmological model in 1+m+p dimensions, where in m-dimensional space there are uniformly distributed p-branes wrapping over the extra p-dimensions. We find that during cosmological evolution m-dimensional space expands with the exact power-law corresponding to pressureless matter while the extra p-dimensions contract. Adding matter, we also obtain solutions having the same property. We show that this might explain in a natural way why the extra dimensions are small compared to the observed three spatial directions.

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