Semiclassical Equations for Weakly Inhomogeneous Cosmologies

Details Semiclassical Equations for Weakly Inhomogeneous Cosmologies Semiclassical Equations for Weakly Inhomogeneous Cosmologies

1993-07-21

arxiv.org/abs/gr-qc/9307027v1

Phys.Rev.D49:1861-1880,1994

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

35 pages, UAB-FT 316, Latex (uses a4wide.sty, a4.sty included in the file)(replaced due to tex problems)

Scientific paper

10.1103/PhysRevD.49.1861

The in-in effective action formalism is used to derive the semiclassical correction to Einstein's equations due to a massless scalar quantum field conformally coupled to small gravitational perturbations in spatially flat cosmological models. The vacuum expectation value of the stress tensor of the quantum field is directly derived from the renormalized in-in effective action. The usual in-out effective action is also discussed and it is used to compute the probability of particle creation. As one application, the stress tensor of a scalar field around a static cosmic string is derived and the backreaction effect on the gravitational field of the string is discussed.

Affiliated with

Also associated with

No associations

Rating

Semiclassical Equations for Weakly Inhomogeneous Cosmologies 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 Semiclassical Equations for Weakly Inhomogeneous Cosmologies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiclassical Equations for Weakly Inhomogeneous Cosmologies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-543444