Resonant tunneling and quantum fluctuation in a driven triple-well system  

作　　者：卢伟涛 王顺金 张华 

机构地区：[1]Department of Physics,Sichuan University [2]Institute of Applied Physics and Computational Mathematics

出　　处：《Chinese Physics B》2010年第2期35-42,共8页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 10974137 and 10775100)

摘　　要：The influence of parameters such as the strength and frequency of a periodic driving force on the tunneling dynamics is investigated in a symmetric triple-well potential. It is shown that for some special values of the parameters, tunneling could be enhanced considerably or suppressed completely. Quantum fluctuation during the tunneling is discussed as well and the numerical results are presented and analysed by virtue of Floquet formalism.The influence of parameters such as the strength and frequency of a periodic driving force on the tunneling dynamics is investigated in a symmetric triple-well potential. It is shown that for some special values of the parameters, tunneling could be enhanced considerably or suppressed completely. Quantum fluctuation during the tunneling is discussed as well and the numerical results are presented and analysed by virtue of Floquet formalism.

关 键 词：triple-well potential non-resonant tunneling resonant tunneling Floquet theorem quantum fluctuation 

分 类 号：O469[理学—凝聚态物理]