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Modern Michelson-Morley experiment using cryogenic optical resonators

Holger Mueller·Sven Herrmann·Claus Braxmaier·Stephan Schiller·Achim Peters
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Abstract

We report on a new test of Lorentz invariance performed by comparing the resonance frequencies of two orthogonal cryogenic optical resonators subject to Earth's rotation over 1 year. For a possible anisotropy of the speed of light c, we obtain 2.6 +/- 1.7 parts in 10^15. Within the Robertson-Mansouri-Sexl test theory, this implies an isotropy violation parameter beta - delta - 1/2 of -2.2 +/- 1.5 parts in 10^9, about three times lower than the best previous result. Within the general extension of the standard model of particle physics, we extract limits on 7 parameters at accuracies down to a part in 10^15, improving the best previous result by about two orders of magnitude.

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Holger Mueller, Sven Herrmann, Claus Braxmaier, Stephan Schiller, Achim Peters. 2003-05-28. Modern Michelson-Morley experiment using cryogenic optical resonators. https://doi.org/10.1103/physrevlett.91.020401

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