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Plateaux Transitions in the Pairing Model:Topology and Selection Rule

Y. Morita·Y. Hatsugai
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Abstract

Based on the two-dimensional lattice fermion model, we discuss transitions between different pairing states. Each phase is labeled by an integer which is a topological invariant and characterized by vortices of the Bloch wavefunction. The transitions between phases with different integers obey a selection rule. Basic properties of the edge states are revealed. They reflect the topological character of the bulk. Transitions driven by randomness are also discussed numerically.

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Y. Morita, Y. Hatsugai. 1999-07-01. Plateaux Transitions in the Pairing Model:Topology and Selection Rule. https://doi.org/10.1103/physrevb.62.99

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