Gravity-induced birefringence within the framework of Poincare gauge theory

Details Gravity-induced birefringence within the framework of Poincare gauge theory Gravity-induced birefringence within the framework of Poincare gauge theory

2005-07-16

arxiv.org/abs/gr-qc/0507071v2

Phys.Rev. D72 (2005) 042001

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

12 pages, accepted for publication by Physical Review D

Scientific paper

10.1103/PhysRevD.72.042001

Gauge theories of gravity provide an elegant and promising extension of general relativity. In this paper we show that the Poincar\'e gauge theory exhibits gravity-induced birefringence under the assumption of a specific gauge invariant nonminimal coupling between torsion and Maxwell's field. Furthermore we give for the first time an explicit expression for the induced phaseshift between two orthogonal polarization modes within the Poincar\'e framework. Since such a phaseshift can lead to a depolarization of light emitted from an extended source this effect is, in principle, observable. We use white dwarf polarimetric data to constrain the essential coupling constant responsible for this effect.

Affiliated with

Also associated with

No associations

Rating

Gravity-induced birefringence within the framework of Poincare gauge theory 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 Gravity-induced birefringence within the framework of Poincare gauge theory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gravity-induced birefringence within the framework of Poincare gauge theory will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-453543