Probing thermalization in quenched (non-)integrable Fermi-Hubbard models

• URL: http://arxiv.org/abs/2005.01104v2
• Date: Sat, 27 Jun 2020 14:28:26 GMT
• Title: Probing thermalization in quenched (non-)integrable Fermi-Hubbard models
• Authors: Philip Bleicker, Joachim Stolze and G\"otz S. Uhrig
• Abstract summary: We find that constants of motion in integrable clusters prevent equilibration to the thermal state. The influence of real space topology and in particular of infinite-range graphs on equilibration and thermalization is studied.
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• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Using numerically exact methods we examine the Fermi-Hubbard model on arbitrary cluster topology. We focus on the question which systems eventually equilibrate or even thermalize after an interaction quench when initially prepared in a state highly entangled between system and bath. We find that constants of motion in integrable clusters prevent equilibration to the thermal state. We discuss the size of fluctuations during equilibration and thermalization and the influence of integrability. The influence of real space topology and in particular of infinite-range graphs on equilibration and thermalization is studied.

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