Wave packet dynamics in periodically kicked nonlinear systems

被引：0

作者：

Yu, Yan ^{[1
,2
]}

Gao, Yi ^{[1
,2
]}

Tong, Peiqing ^{[1
,2
,3
]}

机构：

[1] Nanjing Normal Univ, Dept Phys, Nanjing 210023, Jiangsu, Peoples R China

[2] Nanjing Normal Univ, Inst Theoret Phys, Nanjing 210023, Jiangsu, Peoples R China

[3] Nanjing Normal Univ, Jiangsu Key Lab Numer Simulat Large Scale Complex, Nanjing 210023, Jiangsu, Peoples R China

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2017年 / 50卷 / 15期

基金：

中国国家自然科学基金;

关键词：

kicked systems; nonlinearity; localization; diffusion; BOSE-EINSTEIN CONDENSATE; ANDERSON LOCALIZATION; QUANTUM; DELOCALIZATION; CHAOS; MODEL;

D O I：

10.1088/1361-6455/aa7b6b

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate the dynamics of a wave packet in a periodically kicked nonlinear Aubry-Andre (AA) model when the initial state is localized at a single lattice site. We found that, beside the nonlinearity strength beta and the strength (phase) of the quasiperiodic potential lambda (theta), the kicking period T can also influence the dynamical evolution of the wave packet. Especially when T, beta << 1, the periodically kicked nonlinear AA model can be reduced to a static nonlinear AA model with a rescaled nonlinearity strength beta/T.

引用

页数：7

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