Nonclassicality of induced coherence witnessed by contextuality

• URL: http://arxiv.org/abs/2306.03216v2
• Date: Mon, 26 Feb 2024 13:37:51 GMT
• Title: Nonclassicality of induced coherence witnessed by contextuality
• Authors: F. Haji Shafiee, O. Mahmoudi, R. Nouroozi, and A. Asadian
• Abstract summary: Quantum indistinguishability by path identity generates a new way of optical coherence, called induced coherence" There has been controversy over its true quantum nature and whether the result can be emulated with classical light. We design a suitable contextuality test that can determine the conditions under which the setting produces distinguishing quantum predictions.
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• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Quantum indistinguishability by path identity generates a new way of optical coherence, called ``induced coherence". The phenomenon, originally uncovered by Zou, Wang, and Mandel's experiment, is an emerging notion in modern quantum experiments with a wide range of implications. However, there has been controversy over its true quantum nature and whether the result can be emulated with classical light. We design a suitable contextuality test that can determine the conditions under which the setting produces distinguishing quantum predictions that cannot be described classically, namely, via the noncontextual hidden variable model.

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