Testing the effects of gravity and motion on quantum entanglement in space-based experiments

Edward Bruschi, David and Sabín, Carlos and White, Angela and Baccetti, Valentina and Oi, Daniel K L and Fuentes, Ivette (2014) Testing the effects of gravity and motion on quantum entanglement in space-based experiments. New Journal of Physics, 16. 053041. ISSN 1367-2630

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    Abstract

    We propose an experiment to test the effects of gravity and acceleration on quantum entanglement in space-based setups. We show that the entanglement between excitations of two Bose-Einstein condensates is degraded after one of them undergoes a change in the gravitational field strength. This prediction can be tested if the condensates are initially entangled in two separate satellites while being in the same orbit and then one of them moves to a different orbit. We show that the effect is observable in a typical orbital manoeuvre of nanosatellites like CanX4 and CanX5.