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arXiv · 1701.05401

Multi-path photon-phonon converter in optomechanical system at single-quantum level

Tian-Yi Chen·Wen-Zhao Zhang·Ren-Zhou Fang·Cheng-Zhou Hang·Ling Zhou
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Abstract

Based on photon-phonon nonlinear interaction, a scheme is proposed to realize a controllable multi-path photon-phonon converter at single-quantum level in a composed quadratically coupled optomechanical system. Considering the realization of the scheme, an associated mechanical oscillator is introduced to enhance the effective nonlinear effect. Thus, the single-photon state can be converted to the phonon state with high fidelity even under the current experimental condition that the single-photon coupling rate is much smaller than mechanical frequency ($g\ll\omega_m$). The state transfer protocols and their transfer fidelity are discussed both analytically and numerically. A multi-path photon-phonon converter is designed, by combining the optomechanical system with low frequency resonators, which can be controlled by experimentally adjustable parameters. This work provides us a potential platform for quantum state transfer and quantum information processing.

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Tian-Yi Chen, Wen-Zhao Zhang, Ren-Zhou Fang, Cheng-Zhou Hang, Ling Zhou. 2017-01-19. Multi-path photon-phonon converter in optomechanical system at single-quantum level. https://doi.org/10.1364/oe.25.010779

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