Probing the path information hidden in the quantum fluctuations of interference patterns

Holger F. Hofmann; Tomonori Matsushita; Shunichi Kuroki; Masataka Iinuma

doi:10.1117/12.2631582

4 October 2022 Probing the path information hidden in the quantum fluctuations of interference patterns

Holger F. Hofmann, Tomonori Matsushita, Shunichi Kuroki, Masataka Iinuma

Proceedings Volume 12238, Quantum Communications and Quantum Imaging XX; 1223808 (2022) https://doi.org/10.1117/12.2631582
Event: SPIE Optical Engineering + Applications, 2022, San Diego, California, United States

Abstract

It is commonly assumed that interference patterns contain no information about the path taken by the individual photons. Surprisingly, recent results based on the analysis of weak interactions with probe qubits suggest that this may be a misconception. Here we show that the fluctuations of detection events in quantum interference patterns are correlated with the fluctuations of particle presence in the paths. It is pointed out that this correlation is a general feature of quantum fluctuations that distinguishes them from classical noise.

Conference Presentation

Citation Download Citation

Holger F. Hofmann, Tomonori Matsushita, Shunichi Kuroki, and Masataka Iinuma "Probing the path information hidden in the quantum fluctuations of interference patterns", Proc. SPIE 12238, Quantum Communications and Quantum Imaging XX, 1223808 (4 October 2022); https://doi.org/10.1117/12.2631582

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