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Physical Review A

All-optical transistor based on a cavity optomechanical system with a Bose-Einstein condensate

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

Published Nov 9, 2011• 29 citations
Publisher

Abstract

We propose a scheme of an all-optical transistor based on a coupled Bose-Einstein condensate cavity system. The calculated results show that, in such an optomechanical system, the transmission of the probe beam is strongly dependent on the optical pump power. Therefore, the optical pump field can serve as a ``gate'' field of the transistor, effectively controlling the propagation of the probe field (the ``signal'' field). The scheme proposed here may have potential applications in optical communication and quantum information processing.

DOI
10.1103/physreva.84.055802

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We theoretically investigate the light propagation in a cavity optomechanical system with a Bose-Einstein condensate (BEC). It is shown that slow light can easily be realized in this system via a BEC coupled to an optical cavity field. The numerical results further demonstrate that the transmitted probe beam from the cavity can be delayed as much as 0.8 ms by suitably selecting the pump field detuning from the cavity field frequency. The scheme proposed here may have potential applications in telecommunication and interferometry.
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