任意角度的强磁场对单电子分子体系的影响

项目名称： 任意角度的强磁场对单电子分子体系的影响

项目编号： No.11204389

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 物理学I

项目作者： 张月霞

作者单位： 重庆大学

项目金额： 25万元

中文摘要： )：强场中原子分子的研究对白矮星（10^2-10^5T）和中子星(10^7 -10^9T) 的谱线标识有重要的作用，是当今原子分子领域理论研究的热点之一。但是目前大部分关于单电子分子体系的研究主要集中于某一场区且磁场方向与核连线平行的情况。本项目旨在采用椭球坐标与B样条相结合的新方法，利用其收敛快、计算量小的优点，不仅可以研究整个星体磁场范围内，平行磁场下单电子分子体系表现出的新特性，比如强场下会出现零场时所没有的新的分子结构等；还可以研究与核连线成任意角度的磁场下，单电子分子体系的新特性，比如氢分子离子什么情况下可以稳定存在的问题。我们的主要工作就是探讨磁场与核连线呈任意夹角时，单电子分子体系基态和低激发态的能级和核间距如何变化，在什么情况下单电子分子体系可以稳定存在等问题。作为该工作的延伸，此方法还可尝试研究交叉电磁场对氢原子振子强度以及氢分子离子能级和核间距的影响。

中文关键词： B样条；强磁场；氢分子离子；；

英文摘要： Research on the behaviors of atoms and molecules in strong fields is very important to label the unidentified spectrum from the white dwarf stars(10^2-10^5T) and neutron stars(10^7-10^9T). And it becomes a hot research topic today. While most studies on the one-electron molucule systems are restricted in the case that some domain of the magnetic field strength and the field is parallel to the molecular axis. The aim of the project to employ a new method, which combines the spheroidal coordinate and B-spline. The method has the advantage of quick convergence and less computation quantity and can study the case in whole domain of the magnetic fields referred to these two stars. It is fit for researching the new features of the one-electron molecular systems in the parallel magnetic fields, such as new molecular configurations which don't exist in the zero-field case can be stable in the strong field. Except that, it is also fit for researching the new features in the strong field with arbitrary angle, such as under what conditions, the hydrogen molecular ion can exist stably. Our main work is to discuss that when there is an arbitrary angle between the magnetic field and the molecular axis, how the energies and equilibrium distances of the ground state and low-excited states change with the field and angle. And d

英文关键词： B-spline；strong magnetic field；hydrogen molecular ion；；