Berlin 2014 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 36: Quantum gases: Effects of interactions
Q 36.5: Vortrag
Donnerstag, 20. März 2014, 11:45–12:00, UDL HS2002
Ultracold Chemistry and its Reaction Kinetics — •Florian Richter1, Torben Schulze2, Silke Ospelkaus2, and Tobias Osborne1 — 1Institut für Theoretische Physik, Leibniz Universitaet Hannover, Appelstrasse 2, 30167 Hannover, Germany — 2Institut für Quantenoptik, Leibniz Universitaet Hannover, 30167 Hannover, Germany
The experimental progress in cooling, controlling and producing ultracold particles led us to the possibility to establish molecular bindings of particles even at ultracold temperatures. This process is referred to as ultracold chemistry. A quantum field theoretical description, e.g. in the context of the formation of a molecular Bose Einstein condensate (BEC), was proposed in [1]. By generalizing the proposed model and investigating the predicted dynamics with the help of the time-dependent variational principle (TDVP), we find that phenomena like entanglement and decoherence play an important role in this framework. In particular, we identify an example of an ultracold reaction which displays a rich structure of phenomena, and which can be tested experimentally.
[1] D. Heinzen, R. Wynar, P. Drummond, and K. Kheruntsyan, Physical review letters 84, 5029 (2000).