电磁场作用的Q球解及其能量稳定性质  

Q-ball Solutions with Electromagnetic Field Coupling and Their Energy Stability

作　　者：姜胜鑫[1] 颜骏[1] 苏文杰[1] 肖斗玉[1] 

机构地区：[1]四川师范大学物理与电子工程学院,四川成都610066

出　　处：《四川师范大学学报（自然科学版）》2013年第1期81-86,共6页Journal of Sichuan Normal University（Natural Science）

基　　金：四川省教育厅自然科学重点基金(11ZA100)资助项目

摘　　要：暗物质的理论与实验研究是天体粒子物理学的重要研究课题,暗物质是宇宙中物质的主要组成部分,并对星系的结构和形成产生重要影响.暗物质可能是由最轻的超对称粒子构成,这些标量粒子在宇宙中以非拓扑孤子—Q球的形式存在.通过求解具有耦合势能形式的Klein-Gordon方程,获得了均匀及非均匀标量场模型中带电Q球的精确解,分别用解析和数值分析的方法计算了2种Q球的总能量,结果表明带电Q球模型中也存在能量稳定性.为进一步研究暗物质实验和观测提供研究方法和理论基础.Research of dark-matter theory and experiment study are important topics of astroparticle physics, because dark-matter is the main part of all the matter in the universe, and it has a great influence on the structure and formation of galaxies. Dark matter may be composed of the lightest supersymmetry particles, and these scalar particles exist in the universe in the form of non-topological solitons：Q-ball. In this paper, by solving Klein-Gordon equations with coupling potentials, exact solutions of charged Q-balls in uniform and variational sealer field models are obtained, and the total energy of the two kinds of Q-balls is calculated by using analytic and numerical methods respectively. The results show that energy stability can also exist in the charged Q-ball model, which can supply the research method and theory foundation for the further experiment and observation of dark matter.

关 键 词：电磁场 复标量场模型 Q球解 能量稳定性 

分 类 号：O412.1[理学—理论物理]