Interacting Hofstadter Interface

Author(s): Bernhard Irsigler, Jun-Hui Zheng, and Walter Hofstetter
Two-dimensional topological insulators possess conducting edge states at their boundary while being insulating in the bulk. We investigate the edge state emergent at a smooth topological phase boundary of interacting fermions within a full real-space analysis of the time-reversal invariant Hofstadte...
[Phys. Rev. Lett. 122, 010406] Published Thu Jan 10, 2019

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