Entangler and analyzer for multiphoton Greenberger-Horne-Zeilinger states using weak nonlinearities

作     者：DING Dong YAN FengLi GAO Ting 

作者机构：College of Physics Science and Information EngineeringHebei Normal University Department of Basic CurriculumNorth China Institute of Science and Technology College of Mathematics and Information ScienceHebei Normal University 

出 版 物：《Science China(Physics,Mechanics & Astronomy)》 (中国科学：物理学、力学、天文学（英文版）)

年 卷 期：2014年第57卷第11期

页      面：2098-2103页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China (Grant No.11371005) Hebei Natural Science Foundation of China (Grant Nos.A2012205013 and A2014205060) the Fundamental Research Funds for the Central Universities of Ministry of Education of China (Grant No.3142014068) 

主　　题：entangled photon entanglement generating coherent operations deterministic desired superposition optics 

摘      要：In the regime of weak nonlinearity we present two general,feasible schemes for manipulating photon *** is an entangler for generating any one of the n-photon Greenberger-Horne-Zeilinger(GHZ)*** of the incoming photons with crossKerr media followed by a phase shift gate and a measurement on a probe beam plus appropriate local operations using classical feed-forward of the measurement results allow one to obtain the desired states in a nearly deterministic *** second scheme discussed is an analyzer for multiphoton maximally entangled states,which is derived from the above *** this scheme,all of the 2nn-photon GHZ states can,nearly deterministically,be discriminated.