Regular Article

Quantum coherence and site distinguishability for a single electron in nonuniform lattice systems

¹ Department of Applied Physics, Nanjing University of Posts and Telecommunications, Nanjing 210003, P.R. China
² Institute of Signal Processing and Transmission, Nanjing University of Posts and Telecommunications, Nanjing 210003, P.R. China
³ New Energy Technology Engineering Laboratory of Jiangsu Province, Nanjing University of Posts and Telecommunications, Nanjing 210003, P.R. China

^a e-mail: lygong@njupt.edu.cn

Received: 24 June 2018
Received in final form: 16 October 2018
Published online: 11 February 2019

Abstract

Quantum coherence C and site distinguishability D_Q are studied for an electron in several typical nonuniform lattice systems. Numerical results show that both C and D_Q can reflect electron localization properties. At Anderson transition, an electron exhibiting relatively more wavelike behavior changes to relatively more particlelike behavior.