A spin-1 Kitaev-Gamma chain with single-ion anisotropy exhibits a Kitaev-to-large-D crossover and a changeover to an SU(2)₂ WZW continuous transition with emergent conformal symmetry.
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Inserting a symmetry defect along the orientation-reversing cycle on a Klein bottle in a 2D Z2 SPT phase induces an extra ground state charge that persists at the transition to the trivial phase, causing exact two-fold degeneracy independent of system size.
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Crossover and Changeover in Spin-1 Kitaev-$\Gamma$ Chain with Uniaxial Single-ion Anisotropy
A spin-1 Kitaev-Gamma chain with single-ion anisotropy exhibits a Kitaev-to-large-D crossover and a changeover to an SU(2)₂ WZW continuous transition with emergent conformal symmetry.
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Transition between 2D Symmetry Protected Topological Phases on a Klein Bottle
Inserting a symmetry defect along the orientation-reversing cycle on a Klein bottle in a 2D Z2 SPT phase induces an extra ground state charge that persists at the transition to the trivial phase, causing exact two-fold degeneracy independent of system size.