Generation of hyperentangled four-photon cluster state via cross-Kerr nonlinearity  

作　　者：闫香 於亚飞 张智明 

机构地区：[1]Laboratory of Nanophotonic Functional Materials and Devices SIPSE), Laboratory of Quantum Engineering and Quantum Materials,South China Normal University

出　　处：《Chinese Physics B》2014年第6期51-55,共5页中国物理B（英文版）

基　　金：supported by the Major Research Plan of the National Natural Science Foundation of China(Grant No.91121023);the National Natural Science Foundation of China(Grant Nos.60978009 and 61378012);the Specialized Research Fund for the Doctoral Program of Higher Education of China(Grant No.20124407110009);the"973"Project(Grant Nos.2011CBA00200 and 2013CB921804);the PCSIRT(Grant No.IRT1243)

摘　　要：We propose a scheme for generating a hyperentangled four-photon cluster state that is simultaneously entangled in polarization modes and spatial modes. This scheme is based on linear optical elements, weak cross-Kerr nonlinearity, and homodyne detection. Therefore, it is feasible with current experimental technology.We propose a scheme for generating a hyperentangled four-photon cluster state that is simultaneously entangled in polarization modes and spatial modes. This scheme is based on linear optical elements, weak cross-Kerr nonlinearity, and homodyne detection. Therefore, it is feasible with current experimental technology.

关 键 词：hyperentangled cluster state cross-Kerr nonlinearity homodyne detection controlled-Z gate 

分 类 号：O413.1[理学—理论物理]