Classical model of quantum interferometry tests of macrorealism
- URL: http://arxiv.org/abs/2212.03301v1
- Date: Tue, 6 Dec 2022 20:02:35 GMT
- Title: Classical model of quantum interferometry tests of macrorealism
- Authors: Brian R. La Cour
- Abstract summary: A recent experiment has used entangled light and negative measurements to demonstrate a loophole-free test of macrorealism.
This paper shows that such an experiment, while soundly rejecting macrorealism, may nevertheless be open to a classical interpretation.
A numerical analysis of the model shows good agreement with experimental observations and consistency with both local realism and a rejection of macrorealism.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Macrorealism is a characteristic feature of many, but not all, classical
systems. It is known, for example, that classical light can violate a
Leggett-Garg inequality and, hence, reject a macrorealist interpretation. A
recent experiment has used entangled light and negative measurements to
demonstrate a loophole-free test of macrorealism [PRX Quantum $\mathbf{3}$,
010307 (2022)]. This paper shows that such an experiment, while soundly
rejecting macrorealism, may nevertheless be open to a classical interpretation.
This is done by offering an explicit classical model of heralded photon
detection in an optical interferometer with beam blockers. A numerical analysis
of the model shows good agreement with experimental observations and
consistency with both local realism and a rejection of macrorealism.
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