Wednesday, October 10, 2012

1210.2589 (Maqbool Ahmed et al.)

Everpresent Lambda - II    [PDF]

Maqbool Ahmed, Rafael Sorkin
Ideas from causal set theory lead to a fluctuating, time dependent cosmological-constant of the right order of magnitude to match currently quoted "dark energy" values. Although such a term was predicted some time ago, a more detailed analysis of the resulting class of phenomenological models was begun only recently (based on numerical simulation of the cosmological equations with such a fluctuating term). In this paper we continue the investigation by studying the sensitivity of the scheme to some of the ad hoc choices made in setting it up.
View original: http://arxiv.org/abs/1210.2589

No comments:

Post a Comment