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arXiv · 1911.05156

Large-scale optical interferometry in general spacetimes

Daniel R. Terno·Giuseppe Vallone·Francesco Vedovato·Paolo Villoresi
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Abstract

We introduce a convenient formalism to evaluate the frequency-shift affecting a light signal propagating on a general curved background. Our formulation, which is based on the laws of geometric optics in a general relativistic setting, allows to obtain a transparent generalization of the Doppler frequency-shift without requiring to perform Local Lorentz transformations. It is easily applicable to stationary spacetimes, and in particular to the near-Earth experiments where geometry is described in the parametrized post-Newtonian approximation. We apply our recipe to evaluate the phase-shift arising in large-scale optical interferometric experiments, as the optical version of the Colella-Overhauser-Werner experiment.

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Daniel R. Terno, Giuseppe Vallone, Francesco Vedovato, Paolo Villoresi. 2019-11-12. Large-scale optical interferometry in general spacetimes. https://doi.org/10.1103/physrevd.101.104052

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