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 unitary analogue of the Rosenzweig-Porter ensemble is defined through Dyson Brownian motion and shown numerically to share eigenvalue and eigenstate statistics with the original ensemble.
In a dipole-conserving Bose-Hubbard chain, weak Hilbert-space fragmentation permits thermalization at weak interactions but yields nonergodicity at strong interactions, shown via analytical bounds on frozen states and exact diagonalization of entanglement, relaxation, and level statistics.
A qudit-native framework for discrete time crystals reveals multilevel dynamical mechanisms that stabilize higher-order subharmonic responses and enable concurrent 2T/3T phases in spin-1, spin-3/2, and spin-2 systems.
In finite-volume massive free scalar field theory after local quench, spacing ratios of two-point function extrema follow GOE statistics and an extrema-based form factor shows RMT dip-ramp-plateau.
Trotterized near-thermal dynamics are substantially more robust to gate and Trotter errors than assumed, enabled by linear gate-error scaling with entanglement and a random product state ensemble approximating thermal states.
citing papers explorer
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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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Circular Rosenzweig-Porter random matrix ensemble
A unitary analogue of the Rosenzweig-Porter ensemble is defined through Dyson Brownian motion and shown numerically to share eigenvalue and eigenstate statistics with the original ensemble.
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Weak Fragmentation and Thermalization in a Dipole-Conserving Bose-Hubbard Chain
In a dipole-conserving Bose-Hubbard chain, weak Hilbert-space fragmentation permits thermalization at weak interactions but yields nonergodicity at strong interactions, shown via analytical bounds on frozen states and exact diagonalization of entanglement, relaxation, and level statistics.
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A Qudit-native Framework for Discrete Time Crystals
A qudit-native framework for discrete time crystals reveals multilevel dynamical mechanisms that stabilize higher-order subharmonic responses and enable concurrent 2T/3T phases in spin-1, spin-3/2, and spin-2 systems.
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Random matrix theory signatures in free field theory
In finite-volume massive free scalar field theory after local quench, spacing ratios of two-point function extrema follow GOE statistics and an extrema-based form factor shows RMT dip-ramp-plateau.
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Robustness of near-thermal dynamics on digital quantum computers
Trotterized near-thermal dynamics are substantially more robust to gate and Trotter errors than assumed, enabled by linear gate-error scaling with entanglement and a random product state ensemble approximating thermal states.