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DPG

Regensburg 2007 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 24: Poster I

DY 24.2: Poster

Mittwoch, 28. März 2007, 16:00–18:00, Poster D

Environment-induced transition from diffusive to ballistic transport in a tight-binding model — •Kirsten Wedderhoff and Jochen Gemmer — University of Osnabrueck, Osnabrueck, Germany

We investigate the transport-behavior in a tight-binding model with an additional environment by means of a quantum master equation in Lindblad-form. Starting with the most simple form of two lattice-sites, we try to compare the resulting dynamics with those generated by a discrete diffusion equation. Apparently the environment induces a transition from ballistic to diffusive behavior.

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