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IEEE Photonics Technology Letters

Single Photon Router in the Optical Regime Based on a Cavity Optomechanical System With a Bose–Einstein Condensate

Bin Chen, Jinjin Li, Cheng Jiang, Ka‐Di Zhu

Published Feb 14, 2012• 7 citations
Publisher

Abstract

We propose a novel scheme of a single photon router based on a coupled Bose-Einstein condensate cavity system. The numerical results obtained show that by controlling the route of the probe photon using an appropriate pump beam, this coupled system can serve as a single photon router. Importantly, this router works well in the optical regime, instead of the microwave regime, and at an ultralow pump power. The scheme, proposed here, may have potential applications in optical signal processing, communication, and quantum information networks.

DOI
10.1109/lpt.2012.2188025

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We propose a novel scheme of a single photon router based on a coupled Bose-Einstein condensate cavity system. The numerical results obtained show that by controlling the route of the probe photon using an appropriate pump beam, this coupled system can serve as a single photon router. Importantly, this router works well in the optical regime, instead of the microwave regime, and at an ultralow pump power. The scheme, proposed here, may have potential applications in optical signal processing, communication, and quantum information networks.
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We investigate a single-photon quantum router in quantum fluctuation of fields.The optomechanical system composed of a cigar-shaped Bose-Einstein condensate trapped in an ultrahigh-finesse Fabry-Pérot cavity.We show how an analog of electromagnetically induced transparency in an optomechanical system can be used to produce a switch for a quantum fluctuation field using very low pumping field strength.The numerical results show that the output photon is completely different by turning the pump off and turning the pump on.We also show that the quantum noise sources are very small.This optomechanical system can serve as a single-photon quantum router.
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