Instantons and topological order in two-leg electron ladders: A universality class
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DOI: 10.1103/physrevb.111.205144
Abstract: Our numerical study of the disordered Hubbard model with nearest-neighbor hopping shows that a two-leg electron ladder has a finite topological entanglement entropy in the regime where the density of states exhibits an exponentially decaying… read more here.
Keywords: leg; two leg; leg electron; universality class ... See more keywords