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OPTOMECHANICS

Quantum echoes

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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Correspondence to H. Yamaguchi.

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

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  • DOI: https://doi.org/10.1038/s41567-022-01625-9

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