Noncommutative Corrections to the Robertson-Walker metric

Details Noncommutative Corrections to the Robertson-Walker metric Noncommutative Corrections to the Robertson-Walker metric

2008-08-07

arxiv.org/abs/0808.0943v1

Phys.Rev.D78:065037,2008

Physics

High Energy Physics

High Energy Physics - Theory

13 pages

Scientific paper

10.1103/PhysRevD.78.065037

Upon applying Chamseddine's noncommutative deformation of gravity we obtain the leading order noncommutative corrections to the Robertson-Walker metric tensor. We get an isotropic inhomogeneous metric tensor for a certain choice of the noncommutativity parameters. Moreover, the singularity of the commutative metric at $t=0$ is replaced by a more involved space-time structure in the noncommutative theory. In a toy model we construct a scenario where there is no singularity at $t=0$ at leading order in the noncommutativity parameter. Although singularities may still be present for nonzero $t$, they need not be the source of all time-like geodesics and the result resembles a bouncing cosmology.

Affiliated with

Also associated with

No associations

Rating

Noncommutative Corrections to the Robertson-Walker metric 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 Noncommutative Corrections to the Robertson-Walker metric, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Noncommutative Corrections to the Robertson-Walker metric will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-213099