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Abstract: We report on a Bell experiment with space-like separation assuming that themeasurement time is related to gravity-induced state reduction. Two energy-timeentangled photons are sent through optical fibers and directed into unbalancedinterferometers at two receiving stations separated by 18 km. At each station,the detection of a photon triggers the displacement of a macroscopic mass. Thetiming ensures space-like separation from the moment a photon enters itsinterferometer until the mass has moved. 2-photon interference fringes with avisibility of up to 90.5% are obtained, leading to a violation of Bellinequality.



Autor: D. Salart, A. Baas, J.A.W. van Houwelingen, N. Gisin, H. Zbinden

Fuente: https://arxiv.org/







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