期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
周期驱动谐振子的一种非厄米哈密顿和经典-量子对应
1
作者 辛俊丽 马紫微 黄丽 《中国科学:物理学、力学、天文学》 CSCD 北大核心 2024年第6期151-158,共8页
本文构造一非幺正厄米变换算符和广义规范变换,定义了非厄米哈密顿算符双正交基矢的度规算符,证明了周期驱动谐振子的一种非厄米哈密顿是赝厄米哈密顿算符;从双含时薛定谔方程出发将其厄米化,从而得到其解析量子波函数;基于经典正则变换... 本文构造一非幺正厄米变换算符和广义规范变换,定义了非厄米哈密顿算符双正交基矢的度规算符,证明了周期驱动谐振子的一种非厄米哈密顿是赝厄米哈密顿算符;从双含时薛定谔方程出发将其厄米化,从而得到其解析量子波函数;基于经典正则变换,得到非厄米哈密顿的经典对应;将系统演化一个周期,得到量子LR相和经典角变化率,以及它们之间的对应关系.本文通过对周期驱动谐振子非厄米哈密顿的分析,得出结论:哈密顿算符的厄米性是其有实数本征值的充分,但非必要条件,非厄米哈密顿算符都可以通过构造一非幺正的厄米变换算符和广义规范变换得到其厄米对应,此结论为研究非厄米系统提供了一种新思路. 展开更多
关键词 非厄米哈密顿 广义规范变换 经典-量子对应
原文传递
Exact solutions of a spin-orbit coupling model in two-dimensional central-potentials and quantum-classical correspondence 被引量:2
2
作者 xin junli LIANG JiuQing 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2014年第8期1504-1510,共7页
In this paper we present both the classical and quantum periodic-orbits of a neutral spinning particle constrained in two-dimensional central-potentials with a cylindrically symmetric electric-field in addition,which ... In this paper we present both the classical and quantum periodic-orbits of a neutral spinning particle constrained in two-dimensional central-potentials with a cylindrically symmetric electric-field in addition,which leads to an effective non-Abelian gauge field generated by the spin-orbit coupling.Coherent superposition of orbital angular-eigenfunctions obtained explicitly under the condition of zero-energy exhibits the quantum-classical correspondence in the meaning of exact coincidence between classical orbits and spatial patterns of quantum wave-functions,which as a consequence results in the fractional quantization of orbital angular-momentum by the requirement of the same rotational symmetry of quantum and classical orbits.A non-Abelian anyon-model emerges in a natural way. 展开更多
关键词 量子经典对应 经典轨道 耦合模型 自旋 中央 二维 非阿贝尔规范场 精确解
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部