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缓变非厄米简并量子体系的演变与复化Berry几何相因子
Erolution of the Slowly-Changing Non-Hermitian Quantwm System and the Complexized Berry’s Phase Factor With Degenerate Case
【摘要】 基于双正交基方法,通过推广厄米量子体系的高级绝热近似理论,研究了具有缓变参数非厄米有效哈密顿量的简并量子系统的绝热演化和非绝热修正。研究表明,在绝热条件下,复化的非阿贝尔Berry几何相因子将伴随着体系的演化。
【Abstract】 By generalizing the zheory of high-order approximation based on the biorthonormal State method,the adiabotic evolution and non-adiabatic Corrections are studied for the degenerate guantum system of the non-hermition Hamiltonian with Slowly-Changing Parameters.It is Shown that the Complexized Berry’s phase factor will appear in the evolution of state of the system.Its gauge properties are also studied.
【关键词】 几何相因子;
绝热演化;
非厄米系统;
【Key words】 geometric phase factor; adiabatic evolution; non-Hermitian system;
【Key words】 geometric phase factor; adiabatic evolution; non-Hermitian system;
【基金】 国家自然科学基金
- 【文献出处】 东北师大学报(自然科学版) ,JOURNAL OF NORTHEAST NORMAL UNIVERSITY (NATURAL SCIENCE EDITION) , 编辑部邮箱 ,1994年03期
- 【分类号】O413
- 【下载频次】105