摘要
讨论量子系统C2C3中无偏的不可扩展最大纠缠基的新构造.首先选取空间C2中的任意规范正交基,构造出C2C3中一类4-成员的不可扩展的最大纠缠系统,然后再通过添加C2C3中的两个规范正交向量将其扩充成C2C3中的基底;其次通过变换C3空间的基底,构造出C2C3中另一组完全不同的不可扩展的最大纠缠基,并讨论这两组基无偏的充分必要条件.
New constructions of mutually unbiased unextendible maximally entangled bases in quantum system C2C3 are discussed.Firstly,by choosing an arbitrary orthonormal basis in C2,we construct a kind of4-member unextendible maximally entangled system in C2C3,which becomes an unextendible maximally entangled basis in C2C3 after we add two orthonormal vectors in C2C3.Secondly,through changing the basis of C3,another unextendible maximally entangled basis is established,and the sufficient and necessary conditions of mutually unbiaseness of them are discussed.
出处
《延边大学学报(自然科学版)》
CAS
2015年第2期136-141,共6页
Journal of Yanbian University(Natural Science Edition)
基金
国家自然科学基金资助项目(11361065)
吉林省自然科学基金资助项目(201215239)
关键词
无偏基
最大纠缠态
不可扩展的最大纠缠基
mutually unbiased bases
maximally entangled state
unextendible maximally entangled basis