Wrapped Branes and Compact Extra Dimensions in Cosmology
arXiv:hep-th/0301031 · doi:10.1016/S0370-2693(03)00760-3
Abstract
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.
6 pages, RevTex4, added a figure, section IV rewritten, conclusions unaltered
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