文献详情
Transient diffusion and two-regime localization of discrete breatherlike excitations in nonlinear Schrodinger lattice with disorder
文献类型期刊
作者Sun, Zhi-Yuan[1];Yu, Xin[2]
机构
2019
通讯作者Sun, ZY (reprint author), Beihang Univ, Inst Fluid Mech, Beijing 100191, Peoples R China.; Sun, ZY (reprint author), Beihang Univ, Int Res Inst Multidisciplinary Sci, Beijing 100191, Peoples R China.
期刊名称PHYSICAL REVIEW E影响因子和分区
来源信息年:2019  卷:100  期:2  
100
期刊信息PHYSICAL REVIEW E影响因子和分区  ISSN:2470-0045
2
增刊正刊
摘要We systematically simulate and analyze the motion of discrete breatherlike excitations (DBEs) in the nonlinear Schrodinger lattice with random potentials. A universal transient diffusion of the DBEs is observed for short timescales (t less than or similar to 10(3)). For longer timescales (t up to 10(5)), the DBEs become localized. Such localization, depending on the DBE powers, has two different regimes: Regime I is the Anderson-like localization induced by the disorder, while Regime II is an enhanced localization attributed to both the disorder and discreteness. Our study is expected to shed light on understanding the interplay between disorder and strong nonlinearity, from the diffusive transport and localization properties of nonlinear localized excitations in random media.
收录情况SCIE(WOS:000478999900003)  
所属部门航空科学与工程学院
DOI10.1103/PhysRevE.100.022202
百度学术Transient diffusion and two-regime localization of discrete breatherlike excitations in nonlinear Schrodinger lattice with disorder
语言外文
ISSN2470-0045
人气指数68
浏览次数68
基金Zhuoyue Talent Program of Beihang University; Fundamental Research Funds for the Central Universities
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