Sideband entanglement in collective resonance fluorescence

doi:10.1088/1674-1056/20/11/114205

中国物理B ›› 2011, Vol. 20 ›› Issue (11): 114205-114205.doi: 10.1088/1674-1056/20/11/114205

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇下一篇

Sideband entanglement in collective resonance fluorescence

张雪华, 胡响明

School of Physical Science and Technology, Central China Normal University, Wuhan 430079, China

收稿日期:2011-04-11 修回日期:2011-05-11 出版日期:2011-11-15 发布日期:2011-11-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 11074086) and the Natural Science Foundation of Hubei Province, China (Grant No. 2010CDA075).

Sideband entanglement in collective resonance fluorescence

Zhang Xue-Hua(张雪华) and Hu Xiang-Ming(胡响明)^†

School of Physical Science and Technology, Central China Normal University, Wuhan 430079, China

Received:2011-04-11 Revised:2011-05-11 Online:2011-11-15 Published:2011-11-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 11074086) and the Natural Science Foundation of Hubei Province, China (Grant No. 2010CDA075).

摘要/Abstract

摘要： We examine the quantum correlation between the Mollow sidebands in the collective resonance fluorescence from a strongly driven ensemble of two-level atoms. By using the criterion proposed by Shchukin and Vogel, we show that non-Gaussian entanglement exists between the two separated sidebands. The responsible mechanism is traced to the spontaneous parametric process, in which the nonclassical correlation is established. This suggests that the collective resonance fluorescence provides a continuous source for the non-Gaussian entangled light and thus has great potentials for various applications in quantum information and quantum computation.

Abstract: We examine the quantum correlation between the Mollow sidebands in the collective resonance fluorescence from a strongly driven ensemble of two-level atoms. By using the criterion proposed by Shchukin and Vogel, we show that non-Gaussian entanglement exists between the two separated sidebands. The responsible mechanism is traced to the spontaneous parametric process, in which the nonclassical correlation is established. This suggests that the collective resonance fluorescence provides a continuous source for the non-Gaussian entangled light and thus has great potentials for various applications in quantum information and quantum computation.

Key words: collective resonance fluorescence, non-Gaussian entanglement, spontaneous parametric interaction

中图分类号: (Quantum state engineering and measurements)

42.50.Dv

03.65.Ud (Entanglement and quantum nonlocality) 03.67.Bg (Entanglement production and manipulation) 32.50.+d (Fluorescence, phosphorescence (including quenching))

张雪华, 胡响明. Sideband entanglement in collective resonance fluorescence[J]. 中国物理B, 2011, 20(11): 114205-114205.

Zhang Xue-Hua(张雪华) and Hu Xiang-Ming(胡响明) . Sideband entanglement in collective resonance fluorescence[J]. Chin. Phys. B, 2011, 20(11): 114205-114205.

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Sideband entanglement in collective resonance fluorescence

Sideband entanglement in collective resonance fluorescence

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