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NANOELECTROMECHANICAL SYSTEMS

Quantum sound on a chip

Nature Nanotechnology volume 14, pages 311–312 (2019)Cite this article

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A nanoelectromechanical system made from a nanobeam embedded in a phononic crystal and coupled to a pair of superconducting microwave oscillators can couple hypersonic sound quanta at 0.425 GHz and light quanta with high coherence.

Electromechanical devices convert an electrical input into a mechanical output or vice versa. Such machines have been around since about two centuries ago, when Michael Faraday experimented with electric motors based on the newly discovered phenomenon of electromagnetism. Typical electromechanical devices, such as motors, generators, relays, clocks and many others, are macroscopic and thus lie squarely within the realm of classical physics.

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Fig. 1: Mechanical and electrical oscillators.

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  1. University of Konstanz, Konstanz, Germany

    Guido Burkard

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  1. Guido Burkard
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Correspondence to Guido Burkard.

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Burkard, G. Quantum sound on a chip. Nat. Nanotechnol. 14, 311–312 (2019). https://doi.org/10.1038/s41565-019-0391-4

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  • DOI: https://doi.org/10.1038/s41565-019-0391-4

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