Hannover 2016 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 27: Poster: Quantum Optics and Photonics II

Q 27.34: Poster

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

Matter wave optics with Bose-Einstein condensates — •Jan Teske and Reinhold Walser — Institut für Angewandte Physik, Technische Universität Darmstadt, Hochschulstraße 4A, Darmstadt D-64289, Germany

Freely expanding Bose-Einstein condensates in weightlessness is the central research topic of the QUANTUS experiments. These experiments are performed at the drop tower in Bremen (ZARM). Ultra cold atoms can be used as precise quantum sensors for acceleration and rotations. Expansion times of many seconds can be reached and lead to macroscopic systems sizes [1,2]. In the present contribution we perform realistic simulation in time and three spatial dimensions of the Gross-Pitaevskii equation. In particular we study long time expansion as well as delta kick cooling with realistic magnetic chip trap potentials. We will study the effect of self interaction as well as aberration caused by anharmonic chip trap potentials.
van Zoest et al. Bose-Einstein condensation in Microgravity. Science, 328, 1540 (2010).
G. Nandi, R. Walser, E. Kajari, and W. P. Schleich. Dropping cold quantum gases on earth over long times and large distances. Phys. Rev. A, 76, 063617 (2007).