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Title: Quantum-gravity effects could in principle be witnessed in neutrino-like oscillations
Authors: Marletto C. 
Vedral V. 
Deutsch D.
Keywords: Quantum entanglement
Quantum gravity
Quantum information
Issue Date: 2018
Publisher: Institute of Physics Publishing
Citation: Marletto C., Vedral V., Deutsch D. (2018). Quantum-gravity effects could in principle be witnessed in neutrino-like oscillations. New Journal of Physics 20 (8) : 83011. ScholarBank@NUS Repository.
Abstract: Two of us (Marletto and Vedral 2017 Phys. Rev. Lett. 119 240402) recently showed how the quantum character of a physical system, in particular the gravitational field, can in principle be witnessed without directly measuring observables of that system, solely by its ability to mediate entanglement between two other systems. Here we propose a variant of that scheme, where the entanglement is again generated via gravitational interaction, but now between two particles both at sharp locations (very close to each other) but each in a superposition of two different masses. We discuss an in principle example using two hypothetical massive, neutral, weakly-interacting particles generated in a superposition of different masses. The key property of such particles would be that, like neutrinos, they are affected only by weak nuclear interactions and gravity. ? 2018 The Author(s). Published by IOP Publishing Ltd on behalf of Deutsche Physikalische Gesellschaft.
Source Title: New Journal of Physics
ISSN: 13672630
DOI: 10.1088/1367-2630/aad5d8
Appears in Collections:Staff Publications

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