Simpler criterion on W state for perfect quantumstate splitting and quantum teleportation

作     者：ZUO XueQin LIU YiMin ZHANG Wen ZHANG ZhanJun 

作者机构：Key Laboratory of Optoelectronic Information Acquisition&Manipulation of Ministry of Education of ChinaSchool of Physics&Material ScienceAnhui UniversityHefei 230039China Department of PhysicsShaoguan UniversityShaoguan 512005China 

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：2009年第52卷第12期

页      面：1906-1912页

核心收录：

学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0702[理学-物理学] 

基　　金：Supported by the Program for New Century Excellent Talents at the University of China (Grant No. NCET-06-0554) the National NaturalScience Foundation of China (Grant Nos. 10975001, 60677001, 10747146, and 10874122) the Science-Technology Fund of Anhui Province forOutstanding Youth (Grant No. 06042087) the Key Fund of the Ministry of Education of China (Grant No. 206063) the General Fundof the Educational Committee of Anhui Province (Grant No. 2006KJ260B) the Talent Foundation of Higher Education of Anhui Provincefor Outstanding Youth (Grant No. 2009SQRZ018) the Natural Science Foundation of Guangdong Province (Grant Nos. 06300345 and7007806) 

主　　题：criterion arbitrary W state quantum state splitting quantum teleportation manipulation 

摘      要：A simpler criterion is presented to judge whether a W state can be taken as quantum channel forperfectly splitting or teleporting an arbitrary single-qubit state. If the W state is usable,the detailed manipulations in the two quantum information processes are amply shown. Moreover,some relevant discussions are made.