中国物理B ›› 2015, Vol. 24 ›› Issue (5): 50301-050301.doi: 10.1088/1674-1056/24/5/050301

• GENERAL • 上一篇    下一篇

Ponderomotive squeezing and entanglement ina ring cavity with two vibrational mirrors

冯晓敏, 肖银, 於亚飞, 张智明   

  1. Laboratory of Nanophotonic Functional Materials and Devices (SIPSE), Laboratory of Quantum Engineering and Quantum Materials, South China Normal University, Guangzhou 510006, China
  • 收稿日期:2014-10-30 修回日期:2014-11-27 出版日期:2015-05-05 发布日期:2015-05-05
  • 基金资助:

    Project supported by the Major Research Plan of the National Natural Science Foundation of China (Grant No. 91121023), the National Natural Science Foundation of China (Grant Nos. 61378012 and 60978009), the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20124407110009), the National Basic Research Program of China (Grant Nos. 2011CBA00200 and 2013CB921804), and the Program for Changjiang Scholars and Innovative Research Team in University, China (Grant No. IRT1243).

Ponderomotive squeezing and entanglement ina ring cavity with two vibrational mirrors

Feng Xiao-Min (冯晓敏), Xiao Yin (肖银), Yu Ya-Fei (於亚飞), Zhang Zhi-Ming (张智明)   

  1. Laboratory of Nanophotonic Functional Materials and Devices (SIPSE), Laboratory of Quantum Engineering and Quantum Materials, South China Normal University, Guangzhou 510006, China
  • Received:2014-10-30 Revised:2014-11-27 Online:2015-05-05 Published:2015-05-05
  • Contact: Zhang Zhi-Ming E-mail:zmzhang@scnu.edu.cn
  • About author:03.65.Ta; 03.65.Ud; 42.50.Lc
  • Supported by:

    Project supported by the Major Research Plan of the National Natural Science Foundation of China (Grant No. 91121023), the National Natural Science Foundation of China (Grant Nos. 61378012 and 60978009), the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20124407110009), the National Basic Research Program of China (Grant Nos. 2011CBA00200 and 2013CB921804), and the Program for Changjiang Scholars and Innovative Research Team in University, China (Grant No. IRT1243).

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摘要：

We investigate the properties of the ponderomotive squeezing and the entanglements in a ring cavity with two vibrational mirrors. In the part about squeezing, we find that the squeezing spectrum of the transmitted field shows a distinct feature when the two vibrational mirrors have different frequencies. We also study the effects of some external parameters such as the temperature and the laser power on the degree of squeezing. In the part concerning entanglement, we study the entanglements between the cavity field and one of the vibrational mirrors, and that between the two vibrational mirrors, with emphasis focusing on the robustness of entanglements with respect to the environment temperature.

关键词: optomechanical cavity, squeezing, entanglement

Abstract:

We investigate the properties of the ponderomotive squeezing and the entanglements in a ring cavity with two vibrational mirrors. In the part about squeezing, we find that the squeezing spectrum of the transmitted field shows a distinct feature when the two vibrational mirrors have different frequencies. We also study the effects of some external parameters such as the temperature and the laser power on the degree of squeezing. In the part concerning entanglement, we study the entanglements between the cavity field and one of the vibrational mirrors, and that between the two vibrational mirrors, with emphasis focusing on the robustness of entanglements with respect to the environment temperature.

Key words: optomechanical cavity, squeezing, entanglement

中图分类号:  (Foundations of quantum mechanics; measurement theory)

  • 03.65.Ta
03.65.Ud (Entanglement and quantum nonlocality) 42.50.Lc (Quantum fluctuations, quantum noise, and quantum jumps)