Spacetime Fluctuations and the Cosmological Constant Problem

Research paper by J. W. Moffat

Indexed on: 20 Mar '02Published on: 20 Mar '02Published in: High Energy Physics - Phenomenology


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.