Nonclassical properties of electronic states of aperiodic chains in a homogeneous electric field

作     者：B. J. Spisak M. Wołoszyn 

作者机构：School of Physics and Astronomy University of Leeds Leeds LS2 9JT United Kingdom Faculty of Physics and Applied Computer Science AGH University of Science and Technology Aleja Mickiewicza 30 30-059 Kraków Poland 

出 版 物：《Physical Review B》 (物理学评论B辑：凝聚态物质与材料物理学)

年 卷 期：2009年第80卷第3期

页      面：035127-035127页

核心收录：

学科分类：07[理学] 0702[理学-物理学] 

基　　金：Polish Ministry of Science and Higher Education AGH-UST [11.11.220.01] 

摘      要：The electronic energy levels of one-dimensional aperiodic systems driven by a homogeneous electric field are studied by means of a phase-space description based on the Wigner distribution function. The formulation provides physical insight into the quantum nature of the electronic states for the aperiodic systems generated by the Fibonacci and Thue-Morse sequences. The nonclassical parameter for electronic states is studied as a function of the magnitude of homogeneous electric field to achieve the main result of this work, which is to prove that the nonclassical properties of the electronic states in the aperiodic systems determine the transition probability between electronic states in the region of anticrossings. The localization properties of electronic states and the uncertainty product of momentum and position variables are also calculated as functions of the electric field.