摘要
针对曾谨言等由二体算符σ1aσ2β构成自旋力学量完全集的3种基本形式,文章由局域酉变换不变量出发,给出自旋1/2的二粒子体系纯态纠缠态的分类,结果表明有四种基本形式,进一步发现由同一纠缠形式叠加态的纠缠度不变。
a complete set of the spin quantities have three basic form in two--body operator which de- veloped by ZEN Jin Yan. according to the local unitary transformation,we give the class of 1/2 spin quantities＂ entangled--state in two--particle system . the result show that a complete set of the spin quantities have for basic form, and the degree of entanglement is not changing in the same entangled-- superposition -- state form.
出处
《新疆师范大学学报（自然科学版）》
2009年第1期54-58,共5页
Journal of Xinjiang Normal University(Natural Sciences Edition)
基金
国家自然科学基金资助项目(10864007)
关键词
自旋纠缠态
叠加态
纠缠度
Entangled state of the spin
Superposition state
Degree of entang
