In the large-Hilbert-space limit, Floquet chaotic dynamics with Haar random gates produce linear shot-noise scaling of quantum Fisher information, with super-linear advantages at finite sizes, while local random circuits asymptotically mimic global unitaries.
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The interacting Anderson Quantum Sun model exhibits unconventional regimes featuring volume-law entanglement with intermediate spectral statistics and Poisson statistics with sub-volume entanglement growth.
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Asymptotic Metrological Scaling and Concentration in Chaotic Floquet Dynamics
In the large-Hilbert-space limit, Floquet chaotic dynamics with Haar random gates produce linear shot-noise scaling of quantum Fisher information, with super-linear advantages at finite sizes, while local random circuits asymptotically mimic global unitaries.
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Unconventional Thermalization of a Localized Chain Interacting with an Ergodic Bath
The interacting Anderson Quantum Sun model exhibits unconventional regimes featuring volume-law entanglement with intermediate spectral statistics and Poisson statistics with sub-volume entanglement growth.