Effcient generation of multi-photon W states by joint-measurement  

Efficient generation of multi-photon W states by joint-measurement

作　　者：Wenhu Xu Xin Zhao Guilu Long 

机构地区：[1]Key Laboratory for Atomic and Molecular Nanosciences and Department of Physics, Tsinghua University, Beijing 100084, China [2]Tsinghua National Laboratory for Information Science and Technology, Tsinghua University, Beijing 100084, China

出　　处：《Progress in Natural Science:Materials International》2008年第1期119-122,共4页自然科学进展·国际材料（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(Grant Nos.10325521 and 60635040);the SRFDP program of Education Ministry of China(Grant No.20060003048);the Key Grant Project of Chinese Ministry of Education(Grant No.306020).

摘　　要：We propose an efficient scheme to generate multi-photon entangled W state from two-qubit Einstein-Podolsky-Rosen pairs by measurements and follow-up local transformation. We discuss the efficiency of the scheme under realistic conditions, and its implementation using current technology.We propose an effcient scheme to generate multi-photon entangled W state from two-qubit Einstein–Podolsky–Rosen pairs by mea- surements and follow-up local transformation.We discuss the effciency of the scheme under realistic conditions,and its implementation using current technology.

关 键 词：W-STATE Quantum entanglement Multi-photon W-state generation 

分 类 号：O43[机械工程—光学工程]