Astrophysical signals of P and T violation by gravity
Astrophysics
2007-05-23 v1
Abstract
We study the observational consequences of the leading order P and T violating gauge invariant graviton-photon interactions. Such interactions give rise to gravitational birefringence - the velocity of light signals depends upon their polarisation, which is absent in Einstein's gravity. Using experimentally established limits on the differential time delay in the radio signals from pulsars we put constraints on the magnitude of P and T violating graviton-photon couplings.
Keywords
Cite
@article{arxiv.astro-ph/9509025,
title = {Astrophysical signals of P and T violation by gravity},
author = {A. R. Prasanna and Subhendra Mohanty},
journal= {arXiv preprint arXiv:astro-ph/9509025},
year = {2007}
}