Quantum discord near Anderson metal–insulator transition with correlated disorder

W.W. Cheng, J.X. Li, Chenyu Shan, L.Y. Gong and S.M. Zhao

Physica A: Statistical Mechanics and its Applications, 2014, vol. 398, issue C, 1-9

Abstract: Localization transitions in the one-dimensional Anderson model with long range correlated disorder are studied by means of quantum discord. The results show that the quantum discord exhibits a sudden transition around the boundary between the localized state and extended ones, and does not depend on the system size L in the region of extended states. This feature can depict an identical phase diagraph as well as the traditional method. As an another example, we also consider this quantum correlation in the random dimer model. It is then shown that the quantum discord can be a good quantity to detect the localization transition in these one-dimensional systems with correlated disorder.

Keywords: Localization effects; Correlated disorder; Quantum discord (search for similar items in EconPapers)
Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:398:y:2014:i:c:p:1-9

DOI: 10.1016/j.physa.2013.12.012

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