Quasiperiodic disorder in a long-range SSH model induces TAI phases with multiple winding numbers and produces reentrant staircase-like topological transitions even as the gap nearly closes.
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cond-mat.dis-nn 2years
2026 2verdicts
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In a disordered chiral SSH chain, the standard deviation of ln P(r) shows an enhanced growth exponent θ above 1/2 near the topological transition before returning close to 1/2 at criticality.
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Topological Anderson insulators and reentrant topological transitions in a quasiperiodic long-range Su-Schrieffer-Heeger model
Quasiperiodic disorder in a long-range SSH model induces TAI phases with multiple winding numbers and produces reentrant staircase-like topological transitions even as the gap nearly closes.
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Enhanced Density Fluctuations Near a Disordered Chiral Topological Transition
In a disordered chiral SSH chain, the standard deviation of ln P(r) shows an enhanced growth exponent θ above 1/2 near the topological transition before returning close to 1/2 at criticality.