From classical to modern ether-drift experiments: the narrow window for a preferred frame
نویسندگان
چکیده
منابع مشابه
The classical ether-drift experiments: A modern re-interpretation
The condensation of elementary quanta and their macroscopic occupation of the same quantum state, say k = 0 in some reference frame Σ, is the essential ingredient of the degenerate vacuum of present-day elementary particle physics. This represents a sort of “quantum ether” which characterizes the physically realized form of relativity and could play the role of preferred reference frame in a mo...
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Models with extra space-time dimensions produce, tipically, a 4D effective theory whose vacuum is not exactly Lorentz invariant but can be considered a physical medium whose refractive index is determined by the gravitational field. This leads to a version of relativity with a preferred frame and to look for experimental tests with the new generation of ether-drift experiments using rotating cr...
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Modern ether-drift experiments look for a preferred reference frame searching for modulations of the beat note of two optical resonators that might be induced by the Earth’s rotation. We present a compact formalism to evaluate the signal for most experiments where two arbitrary gaseous media fill the resonating cavities. Our predictions can provide useful hints to optimize the experimental set ...
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Motivated by the critical remarks of several authors, we have re-analyzed the classical etherdrift experiments with the conclusion that the small observed deviations should not be neglected. In fact, within the framework of Lorentzian Relativity, they might indicate the existence of a preferred frame relatively to which the Earth is moving with a velocity vearth ∼ 200 km/s (value projected in t...
متن کاملVacuum condensates and ‘ether-drift’ experiments
The idea of a ‘condensed’ vacuum state is generally accepted in modern elementary particle physics. We argue that this should motivate a new generation of precise ‘ether-drift’ experiments with present-day technology. 1. The idea of a ‘condensed’ vacuum is generally accepted in modern elementary particle physics. Indeed, in many different contexts one introduces a set of elementary quanta whose...
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ژورنال
عنوان ژورنال: Physics Letters A
سال: 2004
ISSN: 0375-9601
DOI: 10.1016/j.physleta.2004.10.062