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

作　　者：ZUO XueQin LIU YiMin ZHANG Wen ZHANG ZhanJun 

机构地区：[1]Key Laboratory of Optoelectronic Information Acquisition&Manipulation of Ministry of Education of China,School of Physics&Material Science,Anhui University,Hefei 230039,China [2]Department of Physics,Shaoguan University,Shaoguan 512005,China

出　　处：《Science China(Physics,Mechanics & Astronomy)》2009年第12期1906-1912,共7页中国科学：物理学、力学、天文学（英文版）

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)

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.A simpler criterion is presented to judge whether a W state can be taken as quantum channel for perfectly 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.

关 键 词：CRITERION arbitrary W STATE QUANTUM STATE SPLITTING QUANTUM TELEPORTATION manipulation 

分 类 号：O413.1[理学—理论物理]