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题名: Discrete nonlinear excitations on an inhomogeneous lattice in a spatially linear potential
作者: Liu, WM ;  Liu, K ;  Zhao, XG
刊名: SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY
出版日期: 1998
卷号: 41, 期号:3, 页码:285-295
关键词: SCHRODINGER-EQUATION ;  ELECTRIC-FIELD ;  LOCALIZATION
学科分类: Physics
通讯作者: Liu, WM , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
部门归属: Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Chinese Acad Sci, Inst Acoust, Beijing 100080, Peoples R China; Inst Appl Phys & Computat Math, Beijing 100088, Peoples R China
英文摘要: Discrete nonlinear excitations on an inhomogeneous lattice in a spatially linear potential are investigated. Discrete breathers possessing multiple frequencies are always spatially localized and oscillatory in lime, with oscillatory frequencies depending on an external potential. A number of phenomena associated with the translational symmetry of the system is addressed. The spatially localized, time periodic and quasi-periodic nonlinear coherent excitations comprising multiple-soliton components are presented with exact results for the corresponding energy, momentum and norm. The mean width of a pulse as a measure of localization is also studied.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000072058000008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12346
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Liu, WM,Liu, K,Zhao, XG. Discrete nonlinear excitations on an inhomogeneous lattice in a spatially linear potential[J]. SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY,1998,41(3):285-295.
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