Dynamical Backreaction in Robertson-Walker Spacetime

Details Dynamical Backreaction in Robertson-Walker Spacetime Dynamical Backreaction in Robertson-Walker Spacetime

2010-03-18

arxiv.org/abs/1003.3630v3

Rev.Math.Phys.23:531-551,2011

Physics

Mathematical Physics

Obtained equation of motion for non-conformal coupling, not just counter terms as in previous version. Typos fixed, renormaliz

Scientific paper

10.1142/S0129055X11004357

The treatment of a quantized field in a curved spacetime requires the study of backreaction of the field on the spacetime via the semiclassical Einstein equation. We consider a free scalar field in spatially flat Robertson-Walker space time. We require the state of the field to allow for a renormalized semiclassical stress tensor. We calculate the sigularities of the stress tensor restricted to equal times in agreement with the usual renormalization prescription for Hadamard states to perform an explicit renormalization. The dynamical system for the Robertson Walker scale parameter $a(t)$ coupled to the scalar field is finally derived for the case of conformal and also general coupling.

Affiliated with

Also associated with

No associations

Rating

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

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-700712