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Quantum walks in the commensurate off-diagonal Aubry-Andre-Harper model

Wang, Li; Liu, Na; Chen, Shu; Zhang, Yunbo


Due to the topological nature of theAubry-Andre-Harper (AAH) model, interesting edge states have been found existing in one-dimensional periodic and quasiperiodic lattices. In this article, we investigate continuous-time quantum walks of identical particles initially located on either edge of commensurate AAH lattices in detail. It is shown that the quantum walker is delocalized among the whole lattice until the strength of periodic modulation is strong enough. The inverse participation ratios...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
Source: Physical Review A
DOI: 10.1103/PhysRevA.95.013619
Access Rights: Open Access


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