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- W978090987 abstract "School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, United Kingdom(Dated: July 22, 2015)What gravitational eld is generated by a massive quantum system in a spatial superposition?This is one of the most important questions in modern physics, and after decades of intensive the-oretical and experimental research, we still do not know the answer. On the experimental side, thediculty lies in the fact that gravity is weak and requires large masses to be detectable. But forlarge masses, it becomes increasingly dicult to generate spatial quantum superpositions, whichlive suciently long to be detected. A delicate balance between opposite quantum and gravitationaldemands is needed. Here we show that this can be achieved in an optomechanics scenario. Wepropose an experimental setup, which allows to decide whether the gravitational eld generated bya quantum system in a spatial superposition is the superposition of the two alternatives, or not.We estimate the magnitude of the e ect and show that it o ers good perspectives for observabil-ity. Performing the experiment will mark a breakthrough in our understanding of the relationshipbetween gravity and quantum theory." @default.
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- W978090987 date "2015-07-21" @default.
- W978090987 modified "2023-09-27" @default.
- W978090987 title "Is Gravity Quantum" @default.
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