均匀磁场中q-形变谐振子的一个纠缠态  

A ENTANGLED STATE OF q-DEFORMED HARMONIC OSCILLATOR IN UNIFORM MAGNETIC FIELD

作　　者：李瑞芳[1] 

机构地区：[1]内蒙古师范大学物理与电子信息学院,内蒙古呼和浩特010022

出　　处：《内蒙古师范大学学报（自然科学汉文版）》2004年第3期246-248,共3页Journal of Inner Mongolia Normal University(Natural Science Edition)

基　　金：内蒙古师范大学青年科研基金项目(QN00107)

摘　　要：适当调节磁场的大小,利用均匀磁场中q-形变谐振子两方向的波函数(rθ方向的基态和第三激发态,z方向的基态和第一激发态)构造了纠缠态,并用Schmidt分解法和约化密度矩阵法验证了所构造的态为纠缠态.The degeneration of the energy-level structure of the usual harmonic oscilator in r θ direction in uniform magnetic field is discussed in this article.At the same time,a entangled state is constructed in theory and is verified by Schmidt decomposition.Then,the reduced density matrix and its square are obtained too.It is shown that the reduced density matrix is not equal to its square,the state can be proved to be an entangled state.

关 键 词：均匀磁场 Q-形变谐振子 纠缠态 Schmidt分解 约化密度矩阵 量子力学 

分 类 号：O413.1[理学—理论物理]