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Journal article · Preprint article

Measurement-Induced Macroscopic Superposition States in Cavity Optomechanics

By Hoff, Ulrich Busk1,2; Kollath-Bönig, Johann3; Neergaard-Nielsen, Jonas Schou1,2; Andersen, Ulrik Lund1,2

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Department of Physics, Technical University of Denmark1

Quantum Physics and Information Technology, Department of Physics, Technical University of Denmark2

Technical University of Denmark3

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.

Language: English
Year: 2016
Pages: 143601
ISSN: 10797114 and 00319007
Types: Journal article and Preprint article
DOI: 10.1103/PhysRevLett.117.143601
ORCIDs: Hoff, Ulrich Busk , Neergaard-Nielsen, Jonas Schou and Andersen, Ulrik Lund
Keywords

physics.optics quant-ph

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