The semiclassical stability of de Sitter spacetime

Details The semiclassical stability of de Sitter spacetime The semiclassical stability of de Sitter spacetime

2008-03-21

arxiv.org/abs/0803.3204v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

47 pages, 3 figures

Scientific paper

de Sitter spacetime and Bunch-Davies vacuum are a solution to the semiclassical Einstein-Schroedinger equations describing the evolution of spacetime geometry and a massive scalar quantum field with arbitrary coupling to curvature. The stability of this solution is proven by calculating the renormalized energy momentum tensor expectation value for small spatially homogeneous deviations from the de Sitter - Bunch-Davies system and solving the linearized backreaction problem. A renormalization scheme is developed. All momentum integrations are carried out analytically. The general solution is given in terms of its Laplace transform. It contains only two artificial instabilities: a constant gauge mode and an instability on the Planck time scale lying outside of the scope of our semiclassical theory.

Affiliated with

Also associated with

No associations

Rating

The semiclassical stability of de Sitter 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 The semiclassical stability of de Sitter spacetime, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The semiclassical stability of de Sitter spacetime will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-587554