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OPTOMECHANICS

Quantum echoes

Nature Physics volume 18, pages 734–735 (2022)Cite this article

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Quantum waves can have stronger correlations than classical ones because of their particle nature. This effect has now been observed using quantum sound waves travelling in an acoustic waveguide.

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Fig. 1: Schematic drawing of correlation measurements for a single phonon round trip in a waveguide.

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Authors and Affiliations

  1. NTT Basic Research Laboratories, NTT Corporation, Atsugi, Japan

    H. Yamaguchi & D. Hatanaka

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  1. H. Yamaguchi
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  2. D. Hatanaka
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Correspondence to H. Yamaguchi.

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The authors declare no competing interests.

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Yamaguchi, H., Hatanaka, D. Quantum echoes. Nat. Phys. 18, 734–735 (2022). https://doi.org/10.1038/s41567-022-01625-9

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