Heralded single phonon preparation, storage and readout in cavity optomechanics
| Autor: | Galland, Christophe, Sangouard, Nicolas, Piro, Nicolas, Gisin, Nicolas, Kippenberg, Tobias J. |
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| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Phys. Rev. Lett. 112, 143602 (2014) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevLett.112.143602 |
| Popis: | We analyze theoretically how to use the radiation pressure 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), and release on-demand the stored excitation as a single photon. Starting with the oscillator close to its ground state, a laser pumping the upper motional sideband leads to dynamical backaction amplification and to the creation of correlated photon-phonon pairs. The detection of one Stokes photon thus projects the macroscopic oscillator into a single-phonon Fock state. The non-classical nature of this mechanical state can be demonstrated by applying a readout laser on the lower sideband (i.e. optical cooling) to map the phononic state to a photonic mode, and by performing an autocorrelation measurement on the anti-Stokes photons. We discuss the relevance of our proposal for the future of cavity optomechanics as an enabling quantum technology. Comment: Accepted for publication in Physical Review Letters. Added References 42,43 |
| Databáze: | arXiv |
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