Enhancement of Localization in a Driven Four-Well System with Second-Order Coupling

作     者：LI Li-Ping LUO Xiao-Bing HU Qiang-Lin YU Xiao-Guang 李利平;罗小兵;胡强林;余晓光

作者机构：Information Engineer SchoolHuanghe Science and Technology CollegeZhengzhou 450006 Department of PhysicsJinggangshan UniversityJi'an 343009 Department of PhysicsTsinghua UniversityBeijing 100084 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2013年第30卷第11期

页      面：29-32页

核心收录：

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 10965001 and 11165009 the Natural Science Foundation of Jiangxi Province under Grant 2010GQW0033 the Program for New Century Excellent Talents in University of Ministry of Education of China(NCET-13-0836) the Jiangxi Young Scientists Training Plan under Grant No 20112BCB23024 the Key Subject of Atomic and Molecular Physics in Jiangxi Province,Zhengzhou Municipal Science and Technology Development Plan Project(20120409) Huanghe Science and Technology College Natural Science Research Project(KYZR201208) 

主　　题：tunneling nearest attributed 

摘      要：We study theoretically the effect of second-order coupling(SOC)on the tunneling dynamics in a planar four-well system with only one well periodically *** find that SOC between next-nearest neighboring wells facilitates *** to SOC,the suppression of tunneling occurs over a finite range of parameters,in stark contrast to the normal coherent destruction of tunneling in the nearest-neighbor tight-binding *** counter-intuitive phenomenon of SOC-enhanced localization can be attributed to the existence of a localized Floquet state rather than the degeneracy of quasi-energy levels in such a system.