Dresden 2011 – wissenschaftliches Programm
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DY: Fachverband Dynamik und Statistische Physik
DY 23: Nonlinear Waves/ Nonlinear Lattices
DY 23.5: Vortrag
Mittwoch, 16. März 2011, 15:15–15:30, ZEU 255
Controlling the non-equilibrium particle density in block-structured driven lattices — •Christoph Petri1, Florian Lenz1, Benno Liebchen1, Fotis Diakonos2, and Peter Schmelcher1 — 1Zentrum für Optische Quantentechnologien, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany — 2Department of Physics, University of Athens, GR-15771 Athens, Greece
We study the dynamics of noninteracting particles loaded into a one-dimensional lattice formed by laterally oscillating barriers. By tuning parameters of the driven barriers it is possible to create blocks in the lattice with locally different transport or localization properties. At the interfaces between these blocks crossovers of trajectories from chaotic to ballistic dynamics and vice versa are observed. Thereby different time-scales are introduced which leave their hallmark in properties of the system like the spatial density of particles for an ensemble propagating in the lattice.