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Abstract
As shown in the famous EPR paper (Einstein, Podolsky e Rosen, 1935), Quantum Mechanics is non-local. The Bell theorem and the experiments by Aspect and many others, ruled out the possibility of explaining quantum correlations between entangled particles using local hidden variables models (except for implausible combinations of loopholes). Some authors (Bell, Eberhard, Bohm and Hiley) suggested that quantum correlations could be due to superluminal communications (tachyons) that propagate isotropically with velocity vt > c in a preferred reference frame. For finite values of vt, Quantum Mechanics and superluminal models lead to different predictions. Some years ago a Geneva group and our group did experiments on entangled photons to evidence possible discrepancies between experimental results and quantum predictions. Since no discrepancy was found, these experiments established only lower bounds for the possible tachyon velocities vt. Here we propose an improved experiment that should lead us to explore a much larger range of possible tachyon velocities Vt for any possible direction of velocity V⃗ of the tachyons preferred frame.
Highlights
The non local character of Quantum Mechanics (QM ) has been object of a great debate starting from the famous Einstein-Podolsky-Rosen (EPR) paper [1]
In this paper, we propose a long distance EPR experiment performed exploiting the long paths that characterize the European Gravitational Observatory (EGO) structures to test the superluminal models of QM
If the Quantum Mechanic correlations between entangled photons would be entirely or partially due to superluminal communications and if the tachyon velocity in the PF would be lower than the βt,min value shown in the curve III in Fig.4, the measured correlations should exhibit appreciable deviations from the predictions of QM
Summary
The non local character of Quantum Mechanics (QM ) has been object of a great debate starting from the famous Einstein-Podolsky-Rosen (EPR) paper [1]. For instance, an ideal experiment performed in the tachyon preferred frame S where two polarizing filters lie at points A and B at the same optical distances dA = dB from source O of the entangled photons as shown in Fig.. In these conditions photons a and b get both polarizers at the same time (in the PF ) and, if the tachyon velocity in the PF has a finite value, no communication is possible and correlations between entangled particles should differ appreciably from the predictions of QM. In the following, we will call “tachyon velocity”
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