Measurement-Induced Macroscopic Superposition States in Cavity Optomechanics

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A novel protocol for generating quantum superpositions of macroscopically distinct states of a bulk mechanical oscillator is proposed, compatible with existing optomechanical devices operating in the bad-cavity limit. By combining a pulsed optomechanical quantum nondemolition (QND) interaction with nonclassical optical resources and measurement-induced feedback, the need for strong single-photon coupling is avoided. We outline a three-pulse sequence of QND interactions encompassing squeezing-enhanced cooling by measurement, state preparation, and tomography.
Original languageEnglish
Article number143601
JournalPhysical Review Letters
Number of pages6
Publication statusPublished - 2016

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© 2016 American Physical Society


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