Generation of Localized Modes in an Electrical Lattice Using Subharmonic Driving

被引：41

作者：

English, L. Q. ^{[1
]}

Palmero, F. ^{[2
]}

Candiani, P. ^{[1
]}

Cuevas, J. ^{[2
]}

Carretero-Gonzalez, R. ^{[3
,4
]}

Kevrekidis, P. G. ^{[5
]}

Sievers, A. J. ^{[6
]}

机构：

[1] Dickinson Coll, Dept Phys & Astron, Carlisle, PA 17013 USA

[2] Univ Seville, Nonlinear Phys Grp, Escuela Tecn Super Ingn Informat, Dept Fis Aplicada 1, E-41012 Seville, Spain

[3] San Diego State Univ, Nonlinear Dynam Syst Grp, Dept Math & Stat, San Diego, CA 92182 USA

[4] San Diego State Univ, Computat Sci Res Ctr, San Diego, CA 92182 USA

[5] Univ Massachusetts, Dept Math & Stat, Amherst, MA 01003 USA

[6] Cornell Univ, Lab Atom & Solid State Phys, Ithaca, NY 14853 USA

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 08期

基金：

美国国家科学基金会;

关键词：

DISCRETE BREATHERS; NONLINEAR LATTICES; EXISTENCE; STABILITY;

D O I：

10.1103/PhysRevLett.108.084101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show experimentally and numerically that an intrinsic localized mode (ILM) can be stably produced (and experimentally observed) via subharmonic, spatially homogeneous driving in the context of a nonlinear electrical lattice. The precise nonlinear spatial response of the system has been seen to depend on the relative location in frequency between the driver frequency, omega(d), and the bottom of the linear dispersion curve, omega(0). If omega(d)/2 lies just below omega(0), then a single ILM can be generated in a 32-node lattice, whereas, when omega(d)/2 lies within the dispersion band, a spatially extended waveform resembling a train of ILMs results. To our knowledge, and despite its apparently broad relevance, such an experimental observation of subharmonically driven ILMs has not been previously reported.

引用

页数：5

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