量子相空间纠缠轨线力学  

Dynamics of entangled trajectories in quantum phase space

作　　者：徐峰[1] 郑雨军[1] 

机构地区：[1]山东大学物理学院,济南250100

出　　处：《物理学报》2013年第21期1-11,共11页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:21073110)资助的课题~~

摘　　要：量子相空间理论已用来研究物理学、化学等有关问题,并为人们研究经典物理和量子物理的对应关系提供了一种有力工具.在量子相空间中,基于Wigner表象下的量子刘维尔方程,建立分子纠缠轨线力学.与经典分子力学方法不同,分子纠缠轨线力学中的轨线不再是独立的,而是"纠缠"在一起的,这正是体系量子效应的体现.这种半经典的理论方法能给出体系的量子效应及具有启示意义的物理图像.分子纠缠轨线力学被用来研究量子隧穿效应、分子光解反应动力学、自关联函数等.本文综述了分子纠缠轨线力学最近的发展.Quantum phase space theory is widely used to investigate physical, anct cnermcal quesuons, it gives us a powenu tuo to stuuy the relations between the classical and quantum world. In quantum phase space theory, entangled molecular dynamics method is developed based on quantum Liouville equation. It is different from classical Hamilton dynamics, the trajectories are entangled i.e. not independent with each other. The quantum effect in the system can be described using the semiclassical theory, and give a vivid physical picture. The quantum tunneling, photodissociation, and self-correlation are investigated using the entangled trajectory. In this paper, we review the recent development in this field.

关 键 词：纠缠轨线 量子相空间 半经典理论 

分 类 号：O413[理学—理论物理]