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Entropy 2013, 15(2), 434-444; doi:10.3390/e15020434

All-Optically Controlled Quantum Memory for Light with a Cavity-Optomechanical System

,  and *
Department of Physics, Shanghai Jiao Tong University, 800 Dong Chuan Road, Shanghai, 200240, China
* Author to whom correspondence should be addressed.
Received: 29 November 2012 / Revised: 26 December 2012 / Accepted: 6 January 2013 / Published: 24 January 2013
(This article belongs to the Special Issue Quantum Information 2012)
Download PDF [610 KB, 24 February 2015; original version 24 February 2015]


Optomechanics may be viewed as a light-mechanics interface to realize hybrid structures for (classical or quantum) information processing, switching or storage. Using the two-laser technique, in this paper, we theoretically devise a protocol for quantum light memory via a cavity optomechanical system composed of a Fabry–Perot cavity and a mechanical resonator. Due to the long-lived mechanical resonator, this quantum memory for light based on optomechanically induced transparency (OMIT) can serve as a long-term memory that can store the full quantum light contained in an optical pulse. It is shown that, with the tunable pump laser, the quantum signal light can be reaccelerated and converted back on demand. Our presented work could open the door to all-optical routers for light memory devices and have a guide to actual experiments.
Keywords: all-optically; quantum memory; optomechanical system all-optically; quantum memory; optomechanical system
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Li, J.; Bin, W.; Zhu, K.-D. All-Optically Controlled Quantum Memory for Light with a Cavity-Optomechanical System. Entropy 2013, 15, 434-444.

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