- Letter
From edge-state physics to entanglement spectrum: Interactions and impurities in two-dimensional topological insulators
Phys. Rev. B 109, L041101 – Published 4 January, 2024
DOI: https://doi.org/10.1103/PhysRevB.109.L041101
Abstract
We present a theoretical approach to incorporate electronic interactions in the study of two-dimensional topological insulators. By exploiting the correspondence between edge-state physics and entanglement spectrum in gapped topological systems, we deconstruct the system into one-dimensional channels. This framework enables a simple and elegant inclusion of fermionic interactions into the discussion of topological insulators. We apply this approach to the Kane-Mele model with interactions and magnetic impurities.
