Phys. Rev. Lett. 64, 1697–1700 (1990)Improved Kennedy-Thorndike experiment to test special relativityReceived 6 November 1989; published in the issue dated 9 April 1990 We have carried out a modern version of the Kennedy-Thorndike experiment by searching for sidereal variations between the frequency of a laser locked to an l2 reference line and a laser locked to the resonance frequency of a highly stable cavity. No variations were found at the level of 2×10-13. This represents a 300-fold improvement over the original Kennedy-Thorndike experiment and allows the Lorentz transformations to be deduced entirely from experiment at an accuracy level of 70 ppm. © 1990 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.64.1697
DOI:
10.1103/PhysRevLett.64.1697
PACS:
03.30.+p, 07.60.Ly, 42.50.Wm, 42.60.-v
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