QUANTUM PHYSICS

An odd couple

An atomic spin oscillator coupled to a mechanical membrane resonator forms an effective negative-mass oscillator. Entanglement in this hybrid quantum system is created by a backaction-evading position measurement, despite the macroscopic separation.

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Fig. 1: An entangled hybrid system.

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Correspondence to Brian D’Urso.

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D’Urso, B., Millen, J. An odd couple. Nat. Phys. (2020). https://doi.org/10.1038/s41567-020-1020-8

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