TESTING LORENTZ INVARIANCE WITH A DOUBLE-PASS OPTICAL RING CAVITY

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We have developed an apparatus to test Lorentz invariance in the photon sector by measuring the resonant frequency difference between two counterpropagating directions of an asymmetric optical ring cavity using a double-pass configuration. No significant evidence for the violation was found at the level of $��c /c \lesssim 10^{-14}$. Details of our apparatus and recent results are presented.

4 pages, 1 figure. Presented at the Sixth Meeting on CPT and Lorentz Symmetry, Bloomington, Indiana, June 17-21, 2013

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