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

作　　者：赵丽芳 赖柏辉 梅锋 於亚飞 冯勋立 张智明 

机构地区：[1]Laboratory of Photonic Information Technology,SIPSE and LQIT,South China Normal University

出　　处：《Chinese Physics B》2010年第9期407-410,共4页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No.60978009 );the National Basic Research Program of China (Grant Nos.2009CB929604 and 2007CB925204)

摘　　要：We propose a scheme for generating a genuine four-particle polarisation entangled state ｜χ^00） 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.We propose a scheme for generating a genuine four-particle polarisation entangled state ｜χ^00） 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.

关 键 词：four-particle entangled state cross-Kerr nonlinearity 

分 类 号：O431.2[机械工程—光学工程]