Spacelike separation in a Bell test assuming gravitationally induced collapses

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Title		Spacelike separation in a Bell test assuming gravitationally induced collapses
Authors		Salart Subils, Daniel Baas, Augustin Van Houwelingen, Jeroen Gisin, Nicolas Zbinden, Hugo
Published in		Physical review letters. 2008, vol. 100, no. 220404, 4
Abstract		We report on a Bell experiment with spacelike 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 spacelike separation from the moment a photon enters its interferometer until the mass has moved. Two-photon interference fringes with a visibility of up to 90.5% are obtained, leading to a violation of the Bell inequality.
Identifiers		DOI: 10.1103/PhysRevLett.100.220404 PMID: 18643408
Full text		Article (Published version) (625 Kb) - Free access
Structures		Faculté des sciences / Section de physique / Groupe de physique appliquée
Citation (ISO format)		SALART SUBILS, Daniel et al. Spacelike separation in a Bell test assuming gravitationally induced collapses. In: Physical review letters, 2008, vol. 100, n° 220404, p. 4. doi: 10.1103/PhysRevLett.100.220404 https://archive-ouverte.unige.ch/unige:24