Angular momentum effects in Michelson-Morley type experiments

Details Angular momentum effects in Michelson-Morley type experiments Angular momentum effects in Michelson-Morley type experiments

2001-10-02

arxiv.org/abs/gr-qc/0110015v2

Gen.Rel.Grav. 34 (2002) 1371-1382

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

12 pages, LaTeX; more about the detection technique, references added; accepted for publication in GRG

Scientific paper

The effect of the angular momentum density of a gravitational source on the times of flight of light rays in an interferometer is analyzed. The calculation is made imagining that the interferometer is at the equator of the gravity source and, as long as possible, the metric, provided it is stationary and axisymmetric, is not approximated. Finally, in order to evaluate the size of the effect in the case of the Earth a weak field approximation is introduced. For laboratory scales and non-geodesic paths the correction turns out to be comparable with the sensitivity expected in gravitational waves interferometric detectors, whereas it drops under the threshold of detectability when using free (geodesic) light rays.

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