Regensburg 2019 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 30: Correlated Electrons: 1D Theory

TT 30.2: Talk

Tuesday, April 2, 2019, 14:15–14:30, H4

Dynamical and entanglement properties of a one-dimensional many-body-localized system coupled to a bath — •Elisabeth Wybo, Michael Knap, and Frank Pollmann — Technische Universität München

Interactions and disorder can lead to a novel many-body localized phase provided the disorder is strong enough. We study how a dephasing bath destroys many-body localization by investigating interferometric protocols known from nuclear magnetic resonance. We determine the time scale, governed by the dephasing rate, at which the localization will be destroyed. We also investigate various measures of entanglement in these systems, and study how their typical behavior is modified by the presence of a bath. For this research we develop exact Krylov methods and tensor-network techniques, to exactly address the effect of the environment on the quantum dynamics.