Quantum gravity stability of isotropy in homogeneous cosmology
arXiv:1107.3468 · doi:10.1016/j.physletb.2011.09.087
Abstract
It has been shown that anisotropy of homogeneous spacetime described by the general Kasner metric can be damped by quantum fluctuations coming from perturbative quantum gravity in one-loop approximation. Also, a formal argument, not limited to one-loop approximation, is put forward in favor of stability of isotropy in the exactly isotropic case.
9 pages, 1 figure