超低温等离子体中纵振荡色散关系的数值模拟  

Numerical simulation of dispersion relations for longitudinal oscillations in ultralow temperature plasmas

作　　者：肖庆生[1] 刘三秋[1] 刘笑兰[1] 张文东[1] 廖妍俐[1] 

机构地区：[1]南昌大学物理系,江西南昌330031

出　　处：《福州大学学报（自然科学版）》2007年第S1期45-48,共4页Journal of Fuzhou University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(10445007);江西省自然科学基金资助项目(0212020)

摘　　要：在超低温情形下,基于各向同性简并等离子体中纵振荡的色散方程,通过数值计算得到了包含四个分支的色散曲线,这与Alexandrov等人的解析结果在对应区域完全吻合.此外,对色散曲线进行拟合,得到用基本函数表述的便于应用的色散关系.In the case of ultralow temperature plasmas,longitudinal dispersion equation has been derived in isotropic degenerate plasmas.Based on the equation,dispersion curves which include four branches have been obtained by numerical method.It s revealed that numerical results which are more integrated agree with Alexandrov s results in the corresponding areas.Furthermore,fitting for these curves,four functions of the dispersion relation have been obtained,which are easy to use.

关 键 词：简并等离子体 纵振荡色散关系 数值模拟 

分 类 号：O534[理学—等离子体物理]