Quantum cluster approach to the topological invariants in correlated Chern insulators

We detect the topological properties of Chern insulators with strong Coulomb interactions by use of cluster perturbation theory and variational cluster approach. The common scheme in previous studies only involves the calculation of the interacting bulk Chern number within the natural-unit cell by m...

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Veröffentlicht in:	New journal of physics 2019-07, Vol.21 (7), p.73016
Hauptverfasser:	Gu, Zhao-Long, Li, Kai, Li, Jian-Xin
Format:	Artikel
Sprache:	eng
Schlagworte:	Boundary conditions Broken symmetry Clusters correlated topological band insulator Insulators Perturbation theory Physics quantum cluster approach topological invariant Topology Unit cell
Online-Zugang:	Volltext
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