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TT: Fachverband Tiefe Temperaturen

TT 72: Poster Session: Correlated Electrons

TT 72.89: Poster

Mittwoch, 14. März 2018, 15:00–19:00, Poster B

Prethermalization after a short electric field pulse — •Marc Alexander and Marcus Kollar — Theoretische Physik III, Universität Augsburg

We study the nonlinear current response to a short electric field pump pulse [1]. For weakly interacting Hubbard models we find that a prethermalization plateau develops after the pulse, in contrast to the noninteracting case. While this behavior is analogous to the prethermalization plateau that occurs after weak interaction quenches [2], the details of the metastable state now depend on the details of the bandstructure and the length, shape, and frequency of the pump pulse.
[1] V. Turkowski and J. K. Freericks, Phys. Rev. B 71, 085104 (2005) [2] M. Moeckel and S. Kehrein, Phys. Rev. Lett. 100, 175702 (2008)