Weak Gravitational Field Effects On Large-Scale Optical Interferometric Bell Tests
arXiv:1908.08179 · doi:10.1088/1361-6382/ab8a60
Abstract
The technological refinement of experimental techniques has recently allowed the generation of two-photon polarization-entangled states at low Earth orbit, which has been subsequently applied to quantum communications. This achievement paves the way to study the interplay between General Relativity and Quantum Mechanics in new setups. Here, we study the generation of two-photon energy-time entangled states via large scale Franson and Hugged interferometric arrays in the presence of a weak gravitational field. We show that for certain configurations of the arrays, an entangled state emerges as a consequence of the gravitational time delay. We also show that the aforementioned arrays generate entanglement and violate the Clauser-Horne-Shymony-Holt inequality under suitable conditions even in the presence of frequency dispersion.
arXiv comment31 pages, 7 figures. Accepted in Classical and Quantum Gravity
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