Semiclassical Gravity in the Far Field Limit of Stars, Black Holes, and Wormholes

Details Semiclassical Gravity in the Far Field Limit of Stars, Black Holes, and Wormholes Semiclassical Gravity in the Far Field Limit of Stars, Black Holes, and Wormholes

2010-08-09

arxiv.org/abs/1008.1433v2

Phys.Rev.D82:124070,2010

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

43 pages, 2 figures. Reference added, minor changes, PRD version

Scientific paper

10.1103/PhysRevD.82.124070

Semiclassical gravity is investigated in a large class of asymptotically flat, static, spherically symmetric spacetimes including those containing static stars, black holes, and wormholes. Specifically the stress-energy tensors of massless free spin 0 and spin 1/2 fields are computed to leading order in the asymptotic regions of these spacetimes. This is done for spin 0 fields in Schwarzschild spacetime using a WKB approximation. It is done numerically for the spin 1/2 field in Schwarzschild, extreme Reissner-Nordstrom, and various wormhole spacetimes. And it is done by finding analytic solutions to the leading order mode equations in a large class of asymptotically flat static spherically symmetric spacetimes. Agreement is shown between these various computational methods. It is found that for all of the spacetimes considered, the energy density and pressure in the asymptotic region are proportional to 1/r^5 to leading order. Furthermore, for the spin 1/2 field and the conformally coupled scalar field, the stress-energy tensor depends only on the leading order geometry in the far field limit. This is also true for the minimally coupled scalar field for spacetimes containing either a static star or a black hole, but not for spacetimes containing a wormhole.

Affiliated with

Also associated with

No associations

Rating

Semiclassical Gravity in the Far Field Limit of Stars, Black Holes, and Wormholes 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 Gravity in the Far Field Limit of Stars, Black Holes, and Wormholes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiclassical Gravity in the Far Field Limit of Stars, Black Holes, and Wormholes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-83345