Cosmological solutions in macroscopic gravity.
Cosmological solutions in macroscopic gravity.
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DOI：
10.1103/physrevlett.95.151102
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发表时间：
2005-04
影响因子：
8.6
通讯作者：
A. Coley;N. Pelavas;R. Zalaletdinov
中科院分区：
文献类型：
--
作者：
A. Coley;N. Pelavas;R. Zalaletdinov
在宇宙学平均问题的宏观引力方法中，用适当的引力关联项修正了宇宙尺度下的爱因斯坦场方程。本文给出了空间均匀各向同性宏观时空中宏观引力方程的宇宙学精确解，发现关联张量是空间曲率项的形式。我们简要讨论这些结果的物理后果。
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.