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Berlin 2018 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 14: Dynamics in many-body systems: interference, equilibration and localization II (joint session DY/TT)

DY 14.8: Vortrag

Montag, 12. März 2018, 17:15–17:30, EB 107

Dynamics in the ergodic phase of the many-body localization transition for a periodically driven system — •Talía L. M. Lezama1, Soumya Bera2, and Jens H. Bardarson31Max Planck Institute for the Physics of Complex Systems, 01187 Dresden, Germany — 2Department of Physics, Indian Institute of Technology Bombay, Mumbai 400076, India — 3Department of Physics, KTH Royal Institute of Technology, Stockholm, SE-106 91 Sweden

Closed disordered interacting quantum systems can experience a many-body localization phase transition when tuning the disorder strength around its critical value. Recent studies have shown that the ergodic phase is not a common metallic phase but that it rather exhibits nontrivial mechanisms (mainly Griffiths effects) foregoing the many-body localized phase. Those mechanisms have been described in terms of dynamical quantities such as autocorrelation functions, return probability, entanglement entropy and imbalance, to mention some. Here, we study the dynamics of a Floquet model of many-body localization, focussing on the dynamical regimes on the ergodic side of the transition.

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