A possible solution to the which-way problem of quantum interference

Hofmann, Holger F.; Matsushita, Tomonori; Shunichi, Kuroki; Iinuma, Munekazu

doi:10.1007/s40509-023-00304-5

Cited by 7 publications

(1 citation statement)

References 31 publications

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“…However, a more consistent reconciliation of quantum interferences with the measurement statistics is provided by weak values, where contextuality appears in the negative weak values of the projectors representing the presence of particles in a path. 14,20 We believe that a breakthrough in the study of quantum paradoxes can be achieved by clarifying the way in which the quantum formalism describes the propagation of photons through multi-path interferometers. 11,12…”

Section: Discussionmentioning

confidence: 99%

Contextuality and inequality violations in a three-path interferometer

Ji,

Iinuma,

Hofmann

2023

Quantum Communications and Quantum Imaging XXI

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Quantum contextuality can be observed in three path interferometers, suggesting a fundamental contradiction between wave propagation and particle propagation inherent in the wave-particle dualism. Here, we investigate this contradiction in a three path interferometer specifically designed to illustrate the paradoxical aspects of single particle interference. A particularly clear violation of non-contextual assumptions is obtained when interference effects suppress detection probabilities to zero in paths that seem to be necessary to explain the observation of photons in the output. This contradiction between detection probabilities in the paths and detection probabilities in the output cannot be explained by any assignment of photon paths through the interferometer, demonstrating a fundamental incompatibility of wave propagation and particle propagation.

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Section: Discussionmentioning

confidence: 99%