摘要
针对dd两体系统中正交态的区分问题,利用判断其对应的正交补空间的维数,进而判断正交补空间是否包含一个最大交换子空间,基于单向LOCC,提出一种新的态区分算法。对于44上的广义正交Bell态,通过系统研究其单向可区分性,给出其可单向区分的快速算法。实验结果表明,dd上的区分算法适用于任何正交两体态的区分,比起该算法,44上快速算法的复杂度更小。
In the topic of distinguishment of orthogonal states in dd bipartite system,with the way of judging dimension of there corresponding orthogonal complement,and then determine whether the orthogonal complement space contains a maximally Abelian subspace,at last propose a new algorithm to distinguish states based on one-way LOCC.For generalized orthogonal Bell states in 44 bipartite system,by studying their distinguishment,this paper propose a faster algorithm based on one way LOCC.Experimental results show that the algorithm in ddbipartite system can be applies in distinguishing any orthogonal bipartite states.What’s more,the algorithm in 44 bipartite system is less complicated.
出处
《计算机工程》
CAS
CSCD
北大核心
2018年第2期182-186,共5页
Computer Engineering
基金
国家自然科学基金(61373150
61602291)
陕西省科学技术研究发展计划工业攻关项目(2013K0611)
中央高校基本科研业务费专项资金(GK201603087)
关键词
谱分解
局域区分
正交两体态
纠缠态
特征向量
spectral decomposition
local distinguish
orthogonal bipartite states
entanglement
feature vector