Hannover 2016 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 58: Poster: Quantum Optics and Photonics IV
Q 58.79: Poster
Donnerstag, 3. März 2016, 16:30–19:00, Empore Lichthof
Probing Open Quantum Systems Using Ultracold Yb in Optical Lattices — •André Kochanke, Bastian Hundt, Thomas Ponath, Benjamin Abeln, Anna Skottke, Lukas Heinze, Klaus Sengstock, and Christoph Becker — Zentrum für Optische Quantentechnologien, Universität Hamburg, Luruper Chaussee 149, 22761 Hamburg
Open quantum systems are an important and active field of research and highly relevant for applications like quantum information processing as well as fundamental questions in many body systems. Ultracold Ytterbium (Yb) gases are an ideal candidate to simulate these phenomena. With its unique atomic structure, Yb offers meta-stable, excited states which are subject to very strong two-body losses. These loss channels are the origin for many quantum effects like entanglement or the “Quantum-Zeno” effect. Here we present our latest results concerning these model systems. In a 3-D optical lattice we selectively prepare single-spin or spin-mixture gases of 173Yb. Starting with a Band- or Mott-Insulator, we collectively populate the meta-stable 3P0 state by means of Rapid-Adiabatic-Passage to measure and characterize the losses for different lattice configurations and extract information about the underlying time evolution. Further, we present details of our experimental setup used to perform these measurements. This work is supported by the DFG within the SFB 925 and the Marie Curie Initial Training Network QTea, financed by the FP7 of the European Commission (contract-no. MCITN-317485).