Heralded Single-Phonon Preparation, Storage, and Readout in Cavity Optomechanics

Galland, Christophe and Sangouard, Nicolas and Piro, Nicolas and Gisin, Nicolas and Kippenberg, Tobias J.. (2014) Heralded Single-Phonon Preparation, Storage, and Readout in Cavity Optomechanics. Physical Review Letters, 112. p. 143602.

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We show how to use the radiation pressure optomechanical coupling between a mechanical oscillator and an optical cavity field to generate in a heralded way a single quantum of mechanical motion (a Fock state). Starting with the oscillator close to its ground state, a laser pumping the upper motional sideband produces correlated photon-phonon pairs via optomechanical parametric down-conversion. Subsequent detection of a single scattered Stokes photon projects the macroscopic oscillator into a single-phonon Fock state. The nonclassical nature of this mechanical state can be demonstrated by applying a readout laser on the lower sideband to map the phononic state to a photonic mode and performing an autocorrelation measurement. Our approach proves the relevance of cavity optomechanics as an enabling quantum technology.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Quantum Physics (Sangouard)
UniBasel Contributors:Sangouard, Nicolas
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Physical Society
ISSN:0031-9007 (print) ; 1079-7114 (online)
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:30 Jun 2016 10:59
Deposited On:28 Apr 2016 08:22

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