Spacetime Fluctuations and the Cosmological Constant Problem
arXiv:hep-ph/0101252
Abstract
Spacetime geometry is treated as a fluctuating, stochastic quantum system allowing an effective quantum gravity solution to the cosmological constant problem. A Focker-Planck equation for the probability density of spacetime metric fluctuations is solved for an FRW universe and the most probable value for the metric scale factor R is for a very small cosmological constant.
Latex file. 11 pages. 1 figure