Hannover 2016 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 27: Poster: Quantum Optics and Photonics II

Q 27.22: Poster

Dienstag, 1. März 2016, 16:30–19:00, Empore Lichthof

Non-equilibrium dynamics of interacting Bosons in an optical lattice — •Jian Jiang, Christian Baals, Bodhaditya Santra, Ralf Labouvie, and Herwig Ott — Research Center OPTIMAS and Fachbereich Physik, Technische Universität Kaiserslautern, 67663 Kaiserslautern, Germany

We study the non-equilibrium dynamics of ultracold Bose gases in optical lattices. Using a scanning electron microscope, we prepare different experimental scenarios, which allow us to study unitary and non-unitary time evolution. In a first experiment we characterize the emerging steady-states of a driven-dissipative Josephson junction array, realized with a BEC in a one-dimensional optical lattice. Furthermore, we investigate the dynamics of the center of mass in a three dimensional optical lattice. Therefore we instantaneously shift the position of the confining dipole trap after loading the atoms into the periodic potential. Finally the atomic cloud is imaged with high resolution using electron microscopy. In a third experiment we measure the coherence of the matter-wave field in an optical lattice using near-field interferometry.