Generating a four-photon polarization-entangled cluster state with homodyne measurement via cross-Kerr nonlinearity  

作　　者：苏石磊 王媛 郭奇 王洪福 张寿 

机构地区：[1]Department of Physics,College of Science,Yanbian University,Yanji 133002,China

出　　处：《Chinese Physics B》2012年第4期308-314,共7页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 61068001 and 11064016)

摘　　要：We propose a protocol to generate a four-photon polarization-entangled cluster state with cross-Kerr nonlinearity by using the interference of polarized photons. The protocol is based on optical elements, cross-Kerr nonlinearity, and homodyne measurement, therefore it is feasible with current experimental technology, The success probability of our protocol is optimal, this property makes our protocol more efficient than others in the applications of quantum communication.We propose a protocol to generate a four-photon polarization-entangled cluster state with cross-Kerr nonlinearity by using the interference of polarized photons. The protocol is based on optical elements, cross-Kerr nonlinearity, and homodyne measurement, therefore it is feasible with current experimental technology, The success probability of our protocol is optimal, this property makes our protocol more efficient than others in the applications of quantum communication.

关 键 词：cluster state homodyne measurement cross-Kerr nonlinearity 

分 类 号：O431.2[机械工程—光学工程] O572.31[理学—光学]