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arXiv · 0803.2425

Space-like Separation in a Bell Test assuming Gravitationally Induced Collapses

D. Salart·A. Baas·J. A. W. van Houwelingen·N. Gisin·H. Zbinden
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Abstract

We report on a Bell experiment with space-like separation assuming that the measurement time is related to gravity-induced state reduction. Two energy-time entangled photons are sent through optical fibers and directed into unbalanced interferometers at two receiving stations separated by 18 km. At each station, the detection of a photon triggers the displacement of a macroscopic mass. The timing ensures space-like separation from the moment a photon enters its interferometer until the mass has moved. 2-photon interference fringes with a visibility of up to 90.5% are obtained, leading to a violation of Bell inequality.

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D. Salart, A. Baas, J. A. W. van Houwelingen, N. Gisin, H. Zbinden. 2008-03-17. Space-like Separation in a Bell Test assuming Gravitationally Induced Collapses. https://doi.org/10.1103/physrevlett.100.220404

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