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Optomechanical entanglement in a whispering-gallery cavity |
| Mi Xian-Wu(米贤武)†, Bai Jiang-Xiang(柏江湘), and Li De-Jun(李德俊) |
| College of Physics and Mechanical & Electrical Engineering, Jishou University, Jishou 416000, China |
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Abstract The dynamics of the optomechanical entanglement between optical cavity field modes and a macroscopic mechanical breathing mode in a whispering-gallery cavity as well as the continuous variable entanglement between the phase-quadrature amplitudes of the two whispering-gallery modes have been analysed. Simulated results indicate that under state-of-the-art experimental conditions, optomechanical entanglement is obvious and can occur even at temperatures of above 40 K. Compared with the entanglement of the mechanical oscillator at the ground state temperature, optomechanical entanglement is more intense by several orders of magnitude.
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Received: 28 February 2011
Revised: 08 September 2011
Accepted manuscript online:
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PACS:
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03.65.Ud
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(Entanglement and quantum nonlocality)
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03.65.Ta
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(Foundations of quantum mechanics; measurement theory)
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42.50.Pq
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(Cavity quantum electrodynamics; micromasers)
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42.50.Wk
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(Mechanical effects of light on material media, microstructures and particles)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 10647132 and 11104113), Hunan Provincial Natural Science Foundation, China (Grant Nos. 09JJ6011 and 11JJ6007), and the Scientific Research Fund of Hunan Provincial Education, China (Grant No. 10A100). |
Corresponding Authors:
Mi Xian-Wu,xwmi@yahoo.com.cn
E-mail: xwmi@yahoo.com.cn
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Cite this article:
Mi Xian-Wu(米贤武), Bai Jiang-Xiang(柏江湘), and Li De-Jun(李德俊) Optomechanical entanglement in a whispering-gallery cavity 2012 Chin. Phys. B 21 030303
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