线性无关非正交态的分辨  

Discrimination between linearly independent nonorthogonal states

作　　者：余少兰[1] 周涛[1] 陈晓钊[1] 吴小华[1] Shao-Lan Xiao-Zhao Xiao-Hua 

机构地区：[1]四川大学物理与科学技术学院,成都610064

出　　处：《四川大学学报（自然科学版）》2009年第6期1748-1756,共9页Journal of Sichuan University(Natural Science Edition)

摘　　要：根据量子力学的基本原理,完美分辨非正交的量子态是不可能的.在允许无结论结果出现的情况下,广义测量(POVM)能给我们带来明确的结果.本文在现在已有的基础上,改进了广义测量的实现方法,将特殊量子态的分辨推广到更加一般的情况.According to the quantum theory of measurement,it is impossible to unambiguously discriminate nonorthogonal quantum states perfectly.If,however,we settle for less and do not require that we succeed every time,then unambiguous discrimination becomes possible.We choose optimal unambiguous discrimination.based on the previous works,we consider some modification,and generalize the method.With our method,we achieve the discrimination between generalize pure states.

关 键 词：线性无关 正交态 分辨 广义测量 QUANTUM theory QUANTUM STATES 量子态 实现方法 量子力学 结果 基本原理 HOWEVER 非正交 works based 基础 改进 time POVM 

分 类 号：N55[自然科学总论]