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Efficient generation of non-classical photon pairs in a hot atomic ensemble

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Abstract

We demonstrate the generation of non-classical photon pairs in a warm Rb87 atomic vapor cell with no buffer gas or polarization preserving coatings via spontaneous four-wave mixing. We obtain the photon pairs with a 1/e correlation time of 40 ns and the violation of Cauchy–Schwartz inequality by a factor of 23±3. This provides a convenient and efficient method to generate photon pair sources based on an atomic ensemble.

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DOI:10.3788/col201816.082701

所属栏目:Quantum optics

基金项目:This work was supported by the Fundamental Research Funds for the Central Universities and the National Natural Science Foundation of China (Nos. 11774286, 11374238, 11574247, 11374008, and 11534008).

收稿日期:2018-03-31

录用日期:2018-06-06

网络出版日期:2018-07-16

作者单位    点击查看

Chengyuan Wang:Shaanxi Key Laboratory of Quantum Information and Quantum Optoelectronic Devices, School of Science, Xi'an Jiaotong University, Xi'an 710049, China
Yan Gu:Shaanxi Key Laboratory of Quantum Information and Quantum Optoelectronic Devices, School of Science, Xi'an Jiaotong University, Xi'an 710049, China
Ya Yu:Shaanxi Key Laboratory of Quantum Information and Quantum Optoelectronic Devices, School of Science, Xi'an Jiaotong University, Xi'an 710049, China
Dong Wei:Shaanxi Key Laboratory of Quantum Information and Quantum Optoelectronic Devices, School of Science, Xi'an Jiaotong University, Xi'an 710049, China
Pei Zhang:Shaanxi Key Laboratory of Quantum Information and Quantum Optoelectronic Devices, School of Science, Xi'an Jiaotong University, Xi'an 710049, China
Hong Gao:Shaanxi Key Laboratory of Quantum Information and Quantum Optoelectronic Devices, School of Science, Xi'an Jiaotong University, Xi'an 710049, China
Fuli Li:Shaanxi Key Laboratory of Quantum Information and Quantum Optoelectronic Devices, School of Science, Xi'an Jiaotong University, Xi'an 710049, China

联系人作者:Hong Gao(honggao@xjtu.edu.cn)

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引用该论文

Chengyuan Wang, Yan Gu, Ya Yu, Dong Wei, Pei Zhang, Hong Gao, Fuli Li, "Efficient generation of non-classical photon pairs in a hot atomic ensemble," Chinese Optics Letters 16(8), 082701 (2018)

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