From classical to modern ether-drift experiments: the narrow window for a preferred frame

Details From classical to modern ether-drift experiments: the narrow window for a preferred frame From classical to modern ether-drift experiments: the narrow window for a preferred frame

2004-10-25

arxiv.org/abs/physics/0410245v1

Physics Letters A 333 (2004) 355

Physics

Classical Physics

15 pages, Latex file

Scientific paper

10.1016/j.physleta.2004.10.062

Modern ether-drift experiments look for a preferred frame by measuring the difference \Delta \nu in the relative frequencies of two cavity-stabilized lasers, upon local rotations of the apparatus or under the Earth's rotation. If the small deviations observed in the classical ether-drift experiments were not mere instrumental artifacts, by replacing the high vacuum in the resonating cavities with a dielectric gaseous medium (e.g. air), the typical measured \Delta\nu\sim 1 Hz should increase by orders of magnitude. This prediction is consistent with the characteristic modulation of a few kHz observed in the original experiment with He-Ne masers. However, if such enhancement would not be confirmed by new and more precise data, the existence of a preferred frame can be definitely ruled out.

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