A local impurity in clean free-fermion chains acts as a branching source leading to sustained growth and scrambling via transitions in monitored and unitary models.
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4 Pith papers cite this work. Polarity classification is still indexing.
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Above a critical noise strength, operator scrambling in random circuits is suppressed leading to classical simulability; below it, simulation stays exponentially hard.
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.
LOE for Haar random dynamics asymptotically matches the Page curve for traceless operators and is independent of the initial operator at leading order.
citing papers explorer
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Local Impurity Induced Growth and Scrambling in Clean Free Fermions
A local impurity in clean free-fermion chains acts as a branching source leading to sustained growth and scrambling via transitions in monitored and unitary models.
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Noise-induced Simulability Transition from Operator Scrambling
Above a critical noise strength, operator scrambling in random circuits is suppressed leading to classical simulability; below it, simulation stays exponentially hard.
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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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Page Curve for Local-Operator Entanglement from Free Probability
LOE for Haar random dynamics asymptotically matches the Page curve for traceless operators and is independent of the initial operator at leading order.