Superperiodicity,chaos and coexisting orbits of ion-acoustic waves in a four-component nonextensive plasma  

作　　者：Asit Saha Jharna Tamang Guo-Cheng Wu Santo Banerjee 

机构地区：[1]Department of Mathematics,Sikkim Manipal Institute of Technology,Sikkim Manipal University,Majitar,Rangpo,East-Sikkim 737136,India [2]Data Recovery Key Laboratory of Sichuan Province,College of Mathematics and Information Science,Neijiang Normal University,Neijiang 641100,China [3]Department of Mathematical Sciences,"Giuseppe Luigi Lagrange"Politecnico di Torino,Corso Duca degli Abruzzi 24,Torino,Italy

出　　处：《Communications in Theoretical Physics》2020年第11期87-98,共12页理论物理通讯（英文版）

基　　金：SMIT and SMU for research support(6100/SMIT/R&D/Project/05/2018)。

摘　　要：Superperiodicity,chaos and coexisting orbits of ion-acoustic waves(IAWs)are studied in a multi-component plasma consisting of fluid ions,q-nonextensive cold and hot electrons and Maxwellian hot positrons.The significant impacts of the system parameters on superperiodic and nonlinear periodic IAWs are presented.Considering an external periodic perturbation various types of quasiperiodic and chaotic features for IAWs are studied in different parametric ranges through time series’plots,phase spaces and Lyapunov exponents.It has been observed that there exist some coexisting orbits for IAWs.Coexisting orbits for IAWs in a classical electron-positron-ion plasma system are reported.

关 键 词：dynamical system supernonlinear periodic wave QUASIPERIODICITY MULTISTABILITY 

分 类 号：O53[理学—等离子体物理]