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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5 Pith papers cite this work. Polarity classification is still indexing.
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quant-ph 5years
2026 5verdicts
UNVERDICTED 5representative citing papers
Above a critical noise strength, operator scrambling in random circuits is suppressed leading to classical simulability; below it, simulation stays exponentially hard.
LOE for Haar random dynamics asymptotically matches the Page curve for traceless operators and is independent of the initial operator at leading order.
Feedback-directed circuits on IBM quantum processors produce robust asymmetry in random dynamics distinct from the non-Hermitian skin effect.
Stabilizer Rényi entropies and Pauli spectrum cumulants show universal power-law scaling with driving rate in slow processes across quantum phase transitions, with the logarithmic Pauli spectrum asymptotically Gaussian, demonstrated in the transverse-field Ising model and long-range Kitaev models.
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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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.
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Observation of feedback-directed quantum dynamics in large-scale quantum processors
Feedback-directed circuits on IBM quantum processors produce robust asymmetry in random dynamics distinct from the non-Hermitian skin effect.
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Universal Non-stabilizerness Dynamics Across Quantum Phase Transitions
Stabilizer Rényi entropies and Pauli spectrum cumulants show universal power-law scaling with driving rate in slow processes across quantum phase transitions, with the logarithmic Pauli spectrum asymptotically Gaussian, demonstrated in the transverse-field Ising model and long-range Kitaev models.