Distinguishable consequence of classical gravity on quantum matter
- URL: http://arxiv.org/abs/2309.09105v1
- Date: Sat, 16 Sep 2023 22:32:04 GMT
- Title: Distinguishable consequence of classical gravity on quantum matter
- Authors: Serhii Kryhin and Vivishek Sudhir
- Abstract summary: A consistent co-existence of classical gravity and quantum matter requires that gravity exhibit irreducible classical fluctuations.
We use a consistent theory of quantum-classical dynamics, together with general relativity, to show that experimentally relevant observables can conclusively test the hypothesis that gravity is classical.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: What if gravity is classical? If true, a consistent co-existence of classical
gravity and quantum matter requires that gravity exhibit irreducible classical
fluctuations. These fluctuations can mediate classical correlations between the
quantized motion of the gravitationally interacting matter. We use a consistent
theory of quantum-classical dynamics, together with general relativity, to show
that experimentally relevant observables can conclusively test the hypothesis
that gravity is classical. This can be done for example by letting highly
coherent source masses interact with each other gravitationally, and performing
precise measurements of the cross-correlation of their motion. Theory predicts
a characteristic phase response that distinguishes classical gravity from
quantum gravity, and from naive sources of decoherence. Such experiments are
imminently viable.
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