Fano resonances in translationally invariant nonlinear chains

作     者：Sang Wook Kim Seunghwan Kim 

作者机构：Nonlinear and Complex Systems Laboratory Department of Physics Pohang University of Science and Technology Pohang Korea 790-784 

出 版 物：《Physical Review B》 (Phys. Rev. B Condens. Matter Mater. Phys.)

年 卷 期：2001年第63卷第21期

页      面：212301-212301页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

摘      要：We show that the Fano resonance, which has been actively studied in the context of mesoscopic transport in systems with impurities or defects, also occurs in translationally invariant nonlinear chains. We find that the phonon scattering with the intrinsic nonlinear localized excitation, called the discrete breather, in this system produces a rich resonance structure involving the typical signatures of Fano resonance with both perfect transmission and perfect reflection, and the anomalous resonance structures. Our system can serve as a simple paradigm for understanding rich Fano-related phenomena in a wide class of nonlinear lattices, based on the global structure of the localized modes and the perfect reflection.