2019/08/28 by Manuel Kreye, Kreye, Manuel, Stefan Kehrein +1 · 2 citations
Physics and Astronomy · #Condensed matter physics #Demography #Density dependence #FOS: Physical sciences #Hubbard model #Opinion Dynamics and Social Influence #Physics #Physics of Superconductivity and Magnetism #Population #Quantum many-body systems #Sociology #Statistical Mechanics (cond-mat.stat-mech) #Statistical physics #Strongly Correlated Electrons (cond-mat.str-el) #Superconductivity #cond-mat.stat-mech #cond-mat.str-el
paper · pdf · doi:10.48550/arxiv.1908.10685
published in arXiv (Cornell University) (Cornell University) · Submission to SciPost
arxiv created 2019/08/28 · openalex publication_date 2019/08/28 · arxiv updated 2019/08/29 · openalex created_date 2019/09/05 · openalex updated_date 2026/07/28
In weakly perturbed systems that are close to integrability, thermalization can be delayed by the formation of prethermalization plateaus. We study the build-up of density-density correlations after a weak interaction quench in the Hubbard model in d > 1 dimensions using unitary perturbation theory. Starting from a pre-quench state at temperature T, we show that the prethermalization values of the post-quench correlations are equal to the equilibrium values of the interacting model at the same temperature T. This is explained by the local character of density-density correlations.