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Type: Conference paper
Title: Tests of Lorentz Invariance using a Microwave Resonator
Author: Wolf, P.
Bize, S.
Clairon, A.
Luiten, A.N.
Santarelli, G.
Tobar, M.E.
Citation: Physical Review Letters, 2003, vol.90, iss.6, pp.4-
Issue Date: 2003
ISSN: 0031-9007
Conference Name: : United States)
Statement of
Peter Wolf, Sébastien Bize, André Clairon, André N. Luiten, Giorgio Santarelli, and Michael E. Tobar
Abstract: The frequencies of a cryogenic sapphire oscillator and a hydrogen maser are compared to set new constraints on a possible violation of Lorentz invariance. We determine the variation of the oscillator frequency as a function of its orientation (Michelson-Morley test) and of its velocity (Kennedy-Thorndike test) with respect to a preferred frame candidate. We constrain the corresponding parameters of the Mansouri and Sexl test theory to delta-beta + 1/2 = (1.5+/-4.2) x 10(-9) and beta-alpha - 1= (-3.1+/-6.9) x 10(-7) which is of the same order as the best previous result for the former and represents a 30-fold improvement for the latter.
Rights: © 2003 The American Physical Society
DOI: 10.1103/PhysRevLett.90.060402
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