Optimally localized single-band Wannier functions for two-dimensional Chern insulators

The construction of optimally localized Wannier functions (and Wannier functions in general) for a Chern insulator has been considered to be impossible owing to the fact that the second moment of such functions is generally infinite. In this article, we propose a solution to this problem in the case...

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Bibliographic Details
Main Authors: Thivan M. Gunawardana, Ari M. Turner, Ryan Barnett
Format: Article
Language:English
Published: American Physical Society 2024-04-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.6.023046