Thermalization time in a boundary-coupled 1D chain with approximate pair-flip constraints scales exponentially with system size due to configuration-space bottlenecks.
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A Monte Carlo algorithm is introduced to evaluate the Lehmann representation of the finite-temperature single-particle Green's function in the Lieb-Liniger model.
A simplified version of quantum dynamical entropy is introduced, its growth rate is computed from correlation functions in the thermodynamic limit, and a Planckian bound on the rate is conjectured.
Random matrix analysis of Z2-symmetric centrosymmetric ensembles shows thermalization of local observables to canonical averages occurs regardless of initial-state symmetry, while symmetry-violating observables have equilibrium values independent of initial symmetry.
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Exponentially slow thermalization and the robustness of Hilbert space fragmentation
Thermalization time in a boundary-coupled 1D chain with approximate pair-flip constraints scales exponentially with system size due to configuration-space bottlenecks.
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Planckian bound on quantum dynamical entropy
A simplified version of quantum dynamical entropy is introduced, its growth rate is computed from correlation functions in the thermodynamic limit, and a Planckian bound on the rate is conjectured.