Spatial solitons and stability in self-focusing and defocusing Kerr nonlinear media with generalized parity-time-symmetric Scarff-II potentials

doi:10.1103/PhysRevE.92.022913

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	Spatial solitons and stability in self-focusing and defocusing Kerr nonlinear media with generalized parity-time-symmetric Scarff-II potentials
	Yan, Zhenya1,2 ; Wen, Zichao 1; Hang, Chao 3,4,5
	2015-08-19
发表期刊	PHYSICAL REVIEW E
ISSN	1539-3755
卷号	92 期号:2 页码:10
摘要	We present a unified theoretical study of the bright solitons governed by self-focusing and defocusing nonlinear Schrodinger (NLS) equations with generalized parity-time- (PT) symmetric Scarff-II potentials. Particularly, a PT-symmetric k-wave-number Scarff-II potential and a multiwell Scarff-II potential are considered, respectively. For the k-wave-number Scarff-II potential, the parameter space can be divided into different regions, corresponding to unbroken and broken PT symmetry and the bright solitons for self-focusing and defocusing Kerr nonlinearities. For the multiwell Scarff-II potential the bright solitons can be obtained by using a periodically space-modulated Kerr nonlinearity. The linear stability of bright solitons with PT-symmetric k-wave-number and multiwell Scarff-II potentials is analyzed in detail using numerical simulations. Stable and unstable bright solitons are found in both regions of unbroken and broken PT symmetry due to the existence of the nonlinearity. Furthermore, the bright solitons in three-dimensional self-focusing and defocusing NLS equations with a generalized PT-symmetric Scarff-II potential are explored. This may have potential applications in the field of optical information transmission and processing based on optical solitons in nonlinear dissipative but PT-symmetric systems.
DOI	10.1103/PhysRevE.92.022913
语种	英语
资助项目	NSF-China[61178091] ; NSF-China[11475063] ; NKBRPC[2011CB302400] ; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China[Y4KF211CJ1]
WOS研究方向	Physics
WOS类目	Physics, Fluids & Plasmas ; Physics, Mathematical
WOS记录号	WOS:000359868600009
出版者	AMER PHYSICAL SOC
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/20600
专题	系统科学研究所
通讯作者	Yan, Zhenya
作者单位	1.Chinese Acad Sci, Inst Syst Sci, Key Lab Math Mechanizat, AMSS, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China 3.E China Normal Univ, State Key Lab Precis Spect, Shanghai 200062, Peoples R China 4.E China Normal Univ, Dept Phys, Shanghai 200062, Peoples R China 5.NYU Shanghai, NYU ECNU Inst Phys, Shanghai 200062, Peoples R China
推荐引用方式 GB/T 7714	Yan, Zhenya,Wen, Zichao,Hang, Chao. Spatial solitons and stability in self-focusing and defocusing Kerr nonlinear media with generalized parity-time-symmetric Scarff-II potentials[J]. PHYSICAL REVIEW E,2015,92(2):10.
APA	Yan, Zhenya,Wen, Zichao,&Hang, Chao.(2015).Spatial solitons and stability in self-focusing and defocusing Kerr nonlinear media with generalized parity-time-symmetric Scarff-II potentials.PHYSICAL REVIEW E,92(2),10.
MLA	Yan, Zhenya,et al."Spatial solitons and stability in self-focusing and defocusing Kerr nonlinear media with generalized parity-time-symmetric Scarff-II potentials".PHYSICAL REVIEW E 92.2(2015):10.