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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Quasiperiodic critical regimes of a modulated Hatano–Nelson model under PBC exhibit the non-Hermitian skin effect under OBC, with an exact Lyapunov exponent fixing the left/right skin boundary.
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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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Interplay of Quasiperiodic Criticality and the Non-Hermitian Skin Effect
Quasiperiodic critical regimes of a modulated Hatano–Nelson model under PBC exhibit the non-Hermitian skin effect under OBC, with an exact Lyapunov exponent fixing the left/right skin boundary.