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Berlin 2015 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 55: Poster - Quantum Systems

DY 55.6: Poster

Donnerstag, 19. März 2015, 16:00–18:00, Poster A

Dynamics of dissipative quantum lattice systems with interaction — •Stefan Wolff and Corinna Kollath — Helmholtz-Institut für Strahlen- und Kernphysik, Bonn, Germany

Most experimental systems are subjected to environmental influences. Typically the coupling to such an environment is one of the main problems for the realization of quantum devices, since it leads to an exponential fast decoherence. However, the interplay of dissipation and interaction can lead to fascinating effects such as unconventional non-exponential behavior. For example in interacting bosonic quantum-many-body systems coupled to a Markovian environment, quantum coherence decays algebraically.

In our studies we apply the Lindblad master equation for an interacting lattice system. We present results obtained using stochastic wave function sampling with time-dependent DMRG-methods to investigate the relevant system dynamics.

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