\$tring Theory and an Accelerating Universe

Details \$tring Theory and an Accelerating Universe \$tring Theory and an Accelerating Universe

2001-05-21

arxiv.org/abs/hep-th/0105206v1

Physics

High Energy Physics

High Energy Physics - Theory

11 pages LATEX, one eps figure incorporated

Scientific paper

An accelerating Universe can be accommodated naturally within non-critical string theory, in which scattering is described by a superscattering matrix \$ that does not factorize as a product of $S$- and $S^\dagger$-matrix elements and time evolution is described by a modified Liouville equation characteristic of open quantum-mechanical systems. We describe briefly alternative representations in terms of the stochastic Ito and Fokker-Planck equations. The link between the vacuum energy and the departure from criticality is stressed. We give an explicit example in which non-marginal \$tring couplings cause a departure from criticality, and the corresponding cosmological vacuum energy relaxes to zero \`a la quintessence.

Affiliated with

Also associated with

No associations

Rating

\$tring Theory and an Accelerating Universe does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with \$tring Theory and an Accelerating Universe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and \$tring Theory and an Accelerating Universe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-564088