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Phys. Rev. Lett. 95, 151102 (2005) [4 pages]

Cosmological Solutions in Macroscopic Gravity

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A. A. Coley1, N. Pelavas1, and R. M. Zalaletdinov1,2
1Department of Mathematics and Statistics, Dalhousie University, Halifax, Nova Scotia, Canada
2Department of Mathematics, Statistics, and Computer Science, St. Francis Xavier University, Antigonish, Nova Scotia, Canada

Received 23 April 2005; published 7 October 2005

In the macroscopic gravity approach to the averaging problem in cosmology, the Einstein field equations on cosmological scales are modified by appropriate gravitational correlation terms. We present exact cosmological solutions to the equations of macroscopic gravity for a spatially homogeneous and isotropic macroscopic space-time and find that the correlation tensor is of the form of a spatial curvature term. We briefly discuss the physical consequences of these results.

© 2005 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.95.151102
DOI:
10.1103/PhysRevLett.95.151102
PACS:
98.80.Jk, 04.50.+h