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26 April 2024 |
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Article overview
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Tests of Lorentz Invariance Using a Microwave Resonator: An Update | | P. Wolf
; S. Bize
; A. Clairon
; A.N. Luiten
; G. Santarelli
; M.E. Tobar
; | | Date: |
11 Jun 2003 | | Subject: | gr-qc astro-ph | | Affiliation: | 1 and 2), S. Bize , A. Clairon , A.N. Luiten , G. Santarelli , M.E. Tobar (Bureau International des Poids et Mesures BNM-SYRTE, Observatoire de Paris, France University of Western Australia, Australia | | 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 $delta - eta + 1/2 leq 3.4 imes 10^{-9}$ and $eta - alpha - 1 leq 4.1 imes 10^{-7}$ which is of the same order as the best previous result for the former and represents a 50 fold improvement for the latter. These results correspond to an improvement of our previously published limits [Wolf P. et al., Phys. Rev. Lett. {f 90}, 6, 060402, (2003)] by about a factor 2. We describe the changes of the experiment, and show the new data that lead to that improvement. | | Source: | arXiv, gr-qc/0306047 | | Services: | Forum | Review | PDF | Favorites | |
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