κ-变形Kaniadakis分布等离子中朗缪尔波色散及其朗道阻尼  

Longitudinal dispersion relation and Laudau damping inκ-deformed Kaniadakis distribution plasmas

作　　者：章世晅 陈辉[1] 刘三秋[1] 

机构地区：[1]南昌大学物理学系,江西南昌330031 [2]东华理工大学理学院,江西南昌330013

出　　处：《南昌大学学报（理科版）》2017年第3期220-224,共5页Journal of Nanchang University(Natural Science)

基　　金：科技部国际合作项目(2015DFA61800);江西省创新团队项目(20133BCB2403);江西省重大科技创新项目(20114ACB00900);江西省教育厅项目(150078)

摘　　要：基于等离子体动理论,研究无磁化、无碰撞、各向同性κ-变形Kaniadakis等离子体中高频朗缪尔波色散关系及其朗道阻尼,分析了κ-变形Kaniadakis分布函数的参量κ对朗缪尔波的色散关系和朗道阻尼的影响。研究表明,朗缪尔波的色散随着κ的增大而增强;其对应的朗道阻尼随着κ的增大而减小;且在κ→0,色散关系和朗道阻尼回到经典的麦克斯韦分布的情况。In the present work,the characteristics of Langmuir waves and its Landau damping are investigated in theκ-deformed Kaniadakis distributed plasma system using the plasma kinetic theory.The results show that the variation tendency of the dispersions and Landau damping of the Langmuir waves rest with the parameterκ.With the value ofκenhanced,the growth rate of the Langmuir wave is more significant,but the Landau damping is suppressed.As expected,the results of Maxwellian case are covered perfectly whenκ=0.

关 键 词：等离子体 κ-变形Kaniadakis分布 朗缪尔波 色散关系 朗道阻尼 

分 类 号：O534[理学—等离子体物理]