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cond-mat.str-el2004★ 2 cited
Ground-State Degeneracy of Correlated Insulators with Edges
Gil Refael, Hsiu-Hau Lin
Using the topological flux insertion procedure, the ground-state degeneracy of an insulator on a periodic lattice with filling factor was found to be at least -fold. App…
cond-mat.str-el2000
Anomalous Scaling of the SO(8) Symmetric Phases in the Two-Leg Ladder
Hsiu-Hau Lin
We carry out a complete analytical stability study for the SO(8) symmetric phases in the weakly-interacting two-leg ladder. It is shown that the SO(8) symmetry is robust under gene…