Anisotropic Evolution of D-dimensional FRW Spacetime

Details Anisotropic Evolution of D-dimensional FRW Spacetime Anisotropic Evolution of D-dimensional FRW Spacetime

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aps..aprd11007m&link_type=abstract

American Physical Society, 2009 APS April Meeting, May 2-5, 2009, abstract #D11.007

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We examine the evolution of the D-dimensional Einstein field equations subject to a flat, anisotropic Friedmann-Robertson-Walker (FRW) metric. By choosing equations of state relating the 4- and d-dimensional pressures to the density, we obtain an expression relating the scale factors to an integration constant. For certain special cases, we obtain exact solutions to the field equations. When the integration constant is set to zero, we obtain the dynamical compactification scenario of Mohammedi et. al. When the volume of the D-dimensional spacetime is held constant, we find a late-time accelerated expansion of the 4-dimensional Universe without a cosmological constant.

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