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Title: Decoherence effects in non-classicality tests of gravity
Authors: Rijavec, Simone
Carlesso, Matteo
Bassi, Angelo
Vedral, Vlatko 
Marletto, Chiara 
Keywords: Decoherence
Quantum gravity
Issue Date: 1-Apr-2021
Publisher: IOP Publishing Ltd
Citation: Rijavec, Simone, Carlesso, Matteo, Bassi, Angelo, Vedral, Vlatko, Marletto, Chiara (2021-04-01). Decoherence effects in non-classicality tests of gravity. New Journal of Physics 23 (4) : 43040. ScholarBank@NUS Repository.
Rights: Attribution 4.0 International
Abstract: The experimental observation of a clear quantum signature of gravity is believed to be out of the grasp of current technology. However, several recent promising proposals to test the possible existence of non-classical features of gravity seem to be accessible by the state-of-art table-top experiments. Among them, some aim at measuring the gravitationally induced entanglement between two masses which would be a distinct non-classical signature of gravity.We explicitly study, in two of these proposals, the effects of decoherence on the system's dynamics by monitoring the corresponding degree of entanglement. We identify the required experimental conditions necessary to perform successfully the experiments. In parallel, we account also for the possible effects of the continuous spontaneous localization (CSL) model, which is the most known among the models of spontaneous wavefunction collapse. We find that any value of the parameters of the CSL model would completely hinder the generation of gravitationally induced entanglement. © 2021 The Author(s).
Source Title: New Journal of Physics
ISSN: 1367-2630
DOI: 10.1088/1367-2630/abf3eb
Rights: Attribution 4.0 International
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