Please use this identifier to cite or link to this item:
|Title:||Asymmetric wave propagation in nonlinear systems||Authors:||Lepri, S.
|Issue Date:||18-Apr-2011||Citation:||Lepri, S., Casati, G. (2011-04-18). Asymmetric wave propagation in nonlinear systems. Physical Review Letters 106 (16) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevLett.106.164101||Abstract:||A mechanism for asymmetric (nonreciprocal) wave transmission is presented. As a reference system, we consider a layered nonlinear, nonmirror-symmetric model described by the one-dimensional discrete nonlinear Schrödinger equation with spatially varying coefficients embedded in an otherwise linear lattice. We construct a class of exact extended solutions such that waves with the same frequency and incident amplitude impinging from left and right directions have very different transmission coefficients. This effect arises already for the simplest case of two nonlinear layers and is associated with the shift of nonlinear resonances. Increasing the number of layers considerably increases the complexity of the family of solutions. Finally, numerical simulations of asymmetric wave packet transmission are presented which beautifully display the rectifying effect. © 2011 American Physical Society.||Source Title:||Physical Review Letters||URI:||http://scholarbank.nus.edu.sg/handle/10635/112383||ISSN:||00319007||DOI:||10.1103/PhysRevLett.106.164101|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 17, 2020
WEB OF SCIENCETM
checked on Feb 10, 2020
checked on Feb 15, 2020
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.