# Rotating optical cavity experiment testing Lorentz invariance at the 10-17 level

@article{Herrmann2009RotatingOC,
title={Rotating optical cavity experiment testing Lorentz invariance at the 10-17 level},
author={Sven Herrmann and Alexander Senger and K. Mohle and Moritz Nagel and Evgeny V. Kovalchuk and Achim Peters},
journal={Physical Review D},
year={2009},
volume={80},
pages={105011}
}
We present an improved laboratory test of Lorentz invariance in electrodynamics by testing the isotropy of the speed of light. Our measurement compares the resonance frequencies of two orthogonal optical resonators that are implemented in a single block of fused silica and are rotated continuously on a precision air bearing turntable. An analysis of data recorded over the course of one year sets a limit on an anisotropy of the speed of light of \$\ensuremath{\Delta}c/c\ensuremath{\sim}1\ifmmode… Expand
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