Noise-free frequency conversion of quantum states

doi:10.1088/1674-1056/20/3/034207

中国物理B ›› 2011, Vol. 20 ›› Issue (3): 34207-034207.doi: 10.1088/1674-1056/20/3/034207

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇下一篇

Noise-free frequency conversion of quantum states

白云飞, 翟淑琴, 郜江瑞, 张俊香

State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China begincenter fo (Received 22 November 2010) endcenter

出版日期:2011-03-15 发布日期:2011-03-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 10974126), and the National Basic Research Program of China (Grant No. 2010CB923102).

Noise-free frequency conversion of quantum states

Bai Yun-Fei(白云飞), Zhai Shu-Qin(翟淑琴), Gao Jiang-Rui(郜江瑞), and Zhang Jun-Xiang(张俊香)^†

State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China

Online:2011-03-15 Published:2011-03-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 10974126), and the National Basic Research Program of China (Grant No. 2010CB923102).

摘要/Abstract

摘要： In this paper, the frequency conversion of quantum states based on the intracavity nonlinear interaction is proposed. The fidelity of an input state after frequency conversion is calculated, and it is shown the noise-free frequency conversion of a quantum state can be achieved by injecting a strong signal field. The dependences of conversion efficiency on the pump parameter, extra losses and input state amplitude are also analysed.

Abstract: In this paper, the frequency conversion of quantum states based on the intracavity nonlinear interaction is proposed. The fidelity of an input state after frequency conversion is calculated, and it is shown the noise-free frequency conversion of a quantum state can be achieved by injecting a strong signal field. The dependences of conversion efficiency on the pump parameter, extra losses and input state amplitude are also analysed.

Key words: frequency conversion, quantum state, fidelity

中图分类号: (Parametric down conversion and production of entangled photons)

42.65.Lm

42.50.Lc (Quantum fluctuations, quantum noise, and quantum jumps) 03.67.Mn (Entanglement measures, witnesses, and other characterizations)

白云飞, 翟淑琴, 郜江瑞, 张俊香. Noise-free frequency conversion of quantum states[J]. 中国物理B, 2011, 20(3): 34207-034207.

Bai Yun-Fei(白云飞), Zhai Shu-Qin(翟淑琴), Gao Jiang-Rui(郜江瑞), and Zhang Jun-Xiang(张俊香). Noise-free frequency conversion of quantum states[J]. Chin. Phys. B, 2011, 20(3): 34207-034207.

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Noise-free frequency conversion of quantum states

Noise-free frequency conversion of quantum states

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