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Stored and Cooled Ions Division
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Max Planck Institute for Nuclear Physics
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Special Seminars 2012

Time: Wednesday, 19 Sep 2012, 14.30 h
Place: Seminarraum Blaum
Speaker: Prof. Akira Noda, Kyoto University
Title: Recent Research at the S-LSR in ICR, Kyoto University


Time: Wednesday, 18. Jul. 2012, 15.00 h
Place: Otto-Hahn-Hörsaal
Speaker: Ofir Alon / Haifa
Title: Quantum Dynamics of Ultracold Attractive Bose Gases


Time: Wednesday, 1. Feb. 2012, 15.00 h
Place: Seminar room Blaum
Speaker: Ravi Krishnamurthy, Raman Research Institute, Bangalore, India
Title: Cooling of Rubidium ions by cold Rubidium atoms in a combined trap


We present the observation of collisional cooling of Rb+ ions trapped in alinear Paul trap by a spatially overlapping dilute gas of cold Rb atoms ina Magneto-Optical Trap (MOT). The cooling mechanism is explainedtheoretically and substantiated with numerical simulations. We considerthe different collision channels and numerically demonstrate that theresonant charge exchange interaction greatly accelerates the ion coolingrate.