Linear and Nonlinear Anderson Localization in a Curved Potential
Linear and Nonlinear Anderson Localization in a Curved Potential作者机构:Department of Physics University Sapienza Piazzale Aldo Moro 5 Rome 00185 Italy
出 版 物:《Chinese Physics Letters》 (中国物理快报(英文版))
年 卷 期:2014年第31卷第3期
页 面:27-29页
核心收录:
学科分类:07[理学] 070102[理学-计算数学] 070202[理学-粒子物理与原子核物理] 0701[理学-数学] 0702[理学-物理学]
基 金:Supported by the ISCRA High Performance Computing Initiative and the Humboldt Foundation
摘 要:Disorder induced localization in the presence of nonlinearity and curvature is investigated. The time-resolved three-dimensional expansion of a wave packet in a bent cigar shaped potential with a focusing Kerr-like interaction term and Gaussian disorder is numerically analyzed. A self-consistent analytical theory, in which randomness, nonlinearity and geometry are determined by a single scaling parameter, is reported, and it is shown that curvature enhances localization.