Generation of a four-particle entangled state via cross-Kerr nonlinearity

doi:10.1088/1674-1056/19/9/094207

中国物理B ›› 2010, Vol. 19 ›› Issue (9): 94207-094207.doi: 10.1088/1674-1056/19/9/094207

Generation of a four-particle entangled state via cross-Kerr nonlinearity

赵丽芳, 赖柏辉, 梅锋, 於亚飞, 冯勋立, 张智明

Laboratory of Photonic Information Technology, SIPSE and LQIT, South China Normal University, Guangzhou 510006, China

收稿日期:2010-01-24 修回日期:2010-03-03 出版日期:2010-09-15 发布日期:2010-09-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 60978009 ), and the National Basic Research Program of China (Grant Nos. 2009CB929604 and 2007CB925204).

Generation of a four-particle entangled state via cross-Kerr nonlinearity

Zhao Li-Fang(赵丽芳), Lai Bo-Hui(赖柏辉), Mei Feng(梅锋), Yu Ya-Fei(於亚飞), Feng Xun-Li(冯勋立), and Zhang Zhi-Ming(张智明)^†

Laboratory of Photonic Information Technology, SIPSE and LQIT, South China Normal University, Guangzhou 510006, China

Received:2010-01-24 Revised:2010-03-03 Online:2010-09-15 Published:2010-09-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 60978009 ), and the National Basic Research Program of China (Grant Nos. 2009CB929604 and 2007CB925204).

摘要/Abstract

摘要： We propose a scheme for generating a genuine four-particle polarisation entangled state |χ⁰⁰$\rangle$ that has many interesting entanglement properties and potential applications in quantum information processing. In our scheme, we use the weak cross-Kerr nonlinear interaction between field-modes and the non-demolition measurement method based on highly efficient homodyne detection, which is feasible under the current experiment conditions.

Abstract: We propose a scheme for generating a genuine four-particle polarisation entangled state |χ⁰⁰$\rangle$ that has many interesting entanglement properties and potential applications in quantum information processing. In our scheme, we use the weak cross-Kerr nonlinear interaction between field-modes and the non-demolition measurement method based on highly efficient homodyne detection, which is feasible under the current experiment conditions.

Key words: four-particle entangled state, cross-Kerr nonlinearity

中图分类号:

4250

赵丽芳, 赖柏辉, 梅锋, 於亚飞, 冯勋立, 张智明. Generation of a four-particle entangled state via cross-Kerr nonlinearity[J]. 中国物理B, 2010, 19(9): 94207-094207.

Zhao Li-Fang(赵丽芳), Lai Bo-Hui(赖柏辉), Mei Feng(梅锋), Yu Ya-Fei(於亚飞), Feng Xun-Li(冯勋立), and Zhang Zhi-Ming(张智明). Generation of a four-particle entangled state via cross-Kerr nonlinearity[J]. Chin. Phys. B, 2010, 19(9): 94207-094207.

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Generation of a four-particle entangled state via cross-Kerr nonlinearity

Generation of a four-particle entangled state via cross-Kerr nonlinearity

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