SU(2) non-Abelian hopping in a 2D Hatano-Nelson cylinder yields Hopf-link band braiding and a GBZ-based polarization parameter that classifies left, right, and bipolar skin modes.
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Non-Abelian Gauge Effect for 2-D Non-Hermitian Hatano-Nelson Model in Cylinder Type
SU(2) non-Abelian hopping in a 2D Hatano-Nelson cylinder yields Hopf-link band braiding and a GBZ-based polarization parameter that classifies left, right, and bipolar skin modes.