Subsystem information capacity distinguishes critical phases in the generalized Aubry-André-Harper model by exposing spatial heterogeneity, stepwise subsystem-size dependence, and subregion echoes linked to incommensurately distributed zeros in hopping terms.
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Periodic driving of the generalized Aubry-André model produces controllable delocalized-localized and multifractal-localized Floquet mobility edges with corresponding superdiffusive to subdiffusive transport.
Adding a constant offset to the quasiperiodic potential in the diamond chain transforms anomalous mobility edges into conventional ones and demonstrates Avila's global theory fails to predict mobility edge locations.
In disordered variants of the Su-Schrieffer-Heeger model, the entanglement entropy difference ΔS^A between half-filled and near-half-filled ground states is zero in the topological phase and finite in the trivial phase, providing a robust diagnostic that can outperform the topological invariant Q.
citing papers explorer
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Probing critical phases in quasiperiodic systems via subsystem information capacity
Subsystem information capacity distinguishes critical phases in the generalized Aubry-André-Harper model by exposing spatial heterogeneity, stepwise subsystem-size dependence, and subregion echoes linked to incommensurately distributed zeros in hopping terms.
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Floquet mobility edges and transport in a periodically driven generalized Aubry-Andr\'e model
Periodic driving of the generalized Aubry-André model produces controllable delocalized-localized and multifractal-localized Floquet mobility edges with corresponding superdiffusive to subdiffusive transport.
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Inapplicability of Avila's theory in the diamond chain with quasiperiodic disorder
Adding a constant offset to the quasiperiodic potential in the diamond chain transforms anomalous mobility edges into conventional ones and demonstrates Avila's global theory fails to predict mobility edge locations.
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Entanglement entropy as a probe of topological phase transitions
In disordered variants of the Su-Schrieffer-Heeger model, the entanglement entropy difference ΔS^A between half-filled and near-half-filled ground states is zero in the topological phase and finite in the trivial phase, providing a robust diagnostic that can outperform the topological invariant Q.