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Test of constancy of speed of light with rotating cryogenic optical resonators

P. Antonini·M. Okhapkin·E. Göklü·S. Schiller
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Abstract

A test of Lorentz invariance for electromagnetic waves was performed by comparing the resonance frequencies of two optical resonators as a function of orientation in space. In terms of the Robertson-Mansouri-Sexl theory, we obtain $β-δ-1/2=(+0.5\pm 3\pm 0.7) E-10$, a ten-fold improvement compared to the previous best results. We also set a first upper limit for a so far unknown parameter of the Standard Model Extension test theory, $|(\tildeκ_{e-})^{ZZ}| < 2\cdot E-14$.

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P. Antonini, M. Okhapkin, E. Göklü, S. Schiller. 2005-04-22. Test of constancy of speed of light with rotating cryogenic optical resonators. https://doi.org/10.1103/physreva.71.050101

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