Quantum entanglement in the one-dimensional Rice–Mele and two-dimensional Qi-Wu-Zhang model

L.S. Lima

Physica A: Statistical Mechanics and its Applications, 2020, vol. 545, issue C

Abstract: The quantum entanglement is studied in the neighborhood of a topological transition in some topological insulators models such as the two-dimensional Qi-Wu-Zhang model or Chern insulator. The system describes electrons hopping in two-dimensional chains. For one-dimensional model case, one have staggered hopping amplitudes. Our results show a strong effect of sudden variation of the topological charge Q in the neighborhood of phase transition on quantum entanglement for all cases analyzed.

Keywords: Topological insulator models; Entanglement (search for similar items in EconPapers)
Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:545:y:2020:i:c:s0378437119321156

DOI: 10.1016/j.physa.2019.123800

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