Regensburg 2013 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 25: Correlated Electrons: Low-Dimensional Systems - Models 3

TT 25.2: Vortrag

Dienstag, 12. März 2013, 09:45–10:00, H9

Non-equilibrium dynamics of the Kondo cloud following quenches in the Resonant Level Model — •Shreyoshi Ghosh, Pedro Ribeiro, and Masud Haque — Max Planck Institute for the Physics of Complex Systems, Dresden, Germany

We study the non-equilibrium dynamics of lattice realizations of the Resonant Level Model. In equilibrium, the conduction electrons form a screening cloud around the impurity site. This impurity screening cloud has been the subject of longstanding fascination, especially in the Kondo model, from which the resonant level model emerges in the Toulouse limit. We present results on the time evolution of the spatial structure of the impurity screening cloud, after local and global quenches of system parameters.