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Angular Momentum Effects in Michelson–Morley Type Experiments

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Abstract

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 an axisymmetric steadily rotating gravity source. In order to evaluate the size of the effect in the case of the Earth a weak field approximation for the metric elements is introduced. For laboratory scales and non-geodesic paths the correction due to the angular momentum 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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Authors and Affiliations

  1. Dip. Fisica, Politecnico and INFN, Turin, Italy

    Angelo Tartaglia & Matteo Luca Ruggiero

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  1. Angelo Tartaglia
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  2. Matteo Luca Ruggiero
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Tartaglia, A., Ruggiero, M.L. Angular Momentum Effects in Michelson–Morley Type Experiments. General Relativity and Gravitation 34, 1371–1382 (2002). https://doi.org/10.1023/A:1020022717216

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