Solitons and chaos of the Klein-Gordon-Zakharov system in a high-frequency plasma

doi:10.1063/1.4932076

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	Solitons and chaos of the Klein-Gordon-Zakharov system in a high-frequency plasma
	Zhen, Hui-Ling 1,2; Tian, Bo 1,2; Sun, Ya 1,2; Chai, Jun 1,2; Wen, Xiao-Yong 3,4
	2015-10-01
发表期刊	PHYSICS OF PLASMAS
ISSN	1070-664X
卷号	22 期号:10 页码:9
摘要	In this paper, we study the Klein-Gordon-Zakharov (KGZ) system, which describes the interaction between the Langmuir wave and ion sound wave in a high-frequency plasma. By means of the Hirota method and symbolic computation, bright and mixed-type soliton solutions are obtained. For the one soliton, amplitude of E is positively related to beta(2), and that of n is inversely related to beta(2), while they are both positively related to alpha, where E refers to the high-frequency part of the electrostatic potential of the electric field raised by the electrons, and n represents the deviation of ion density from its equilibrium, beta(2) and a are the plasma frequency and ion sound speed, respectively. Head-on interactions between the two bright solitons and two mixed-type ones are respectively displayed. With beta(2) increasing, the head-on interaction is transformed into an overtaking one. Bright bound-state solitons are investigated, and the interaction period decreases with alpha increasing. Furthermore, with the external forces Gamma(1)(t) and Gamma(2)(t) introduced, the perturbed KGZ system is studied numerically for its associated chaotic motions. Both the weak and developed chaotic motions can be observed. Gamma(1)(t) and Gamma(2)(t) have different effects on the chaotic motions: the chaotic motion can be weakened by decreasing the amplitude of Gamma(1)(t) or increasing the amplitude and frequency of Gamma(2)(t). (C) 2015 AIP Publishing LLC.
DOI	10.1063/1.4932076
语种	英语
资助项目	National Natural Science Foundation of China[11272023] ; National Natural Science Foundation of China[11471050] ; State Key Laboratory of Information Photonics and Optical Communications (Beijing University of Posts and Telecommunications) ; Fundamental Research Funds for the Central Universities of China[2011BUPTYB02] ; Fundamental Research Funds for the Central Universities[2015RC19] ; Beijing Natural Science Foundation[1153004] ; China Postdoctoral Science Foundation[2015M570161]
WOS研究方向	Physics
WOS类目	Physics, Fluids & Plasmas
WOS记录号	WOS:000364403600037
出版者	AMER INST PHYSICS
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/21255
专题	中国科学院数学与系统科学研究院
通讯作者	Tian, Bo
作者单位	1.Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China 2.Beijing Univ Posts & Telecommun, Sch Sci, Beijing 100876, Peoples R China 3.Beijing Informat Sci & Technol Univ, Sch Appl Sci, Dept Math, Beijing 100192, Peoples R China 4.Chinese Acad Sci, AMSS, Inst Syst Sci, Key Lab Math Mech, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhen, Hui-Ling,Tian, Bo,Sun, Ya,et al. Solitons and chaos of the Klein-Gordon-Zakharov system in a high-frequency plasma[J]. PHYSICS OF PLASMAS,2015,22(10):9.
APA	Zhen, Hui-Ling,Tian, Bo,Sun, Ya,Chai, Jun,&Wen, Xiao-Yong.(2015).Solitons and chaos of the Klein-Gordon-Zakharov system in a high-frequency plasma.PHYSICS OF PLASMAS,22(10),9.
MLA	Zhen, Hui-Ling,et al."Solitons and chaos of the Klein-Gordon-Zakharov system in a high-frequency plasma".PHYSICS OF PLASMAS 22.10(2015):9.