Astrophysical signals of P and T violation by gravity

Details Astrophysical signals of P and T violation by gravity Astrophysical signals of P and T violation by gravity

1995-09-05

arxiv.org/abs/astro-ph/9509025v1

Astronomy and Astrophysics

Astrophysics

Scientific paper

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.

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