Hannover 2016 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 12: Ultra-cold atoms, ions and BEC (with A)
Q 12.26: Poster
Monday, February 29, 2016, 16:30–19:00, Empore Lichthof
Interactions of Single Cesium Atoms with an Ultracold Rubidium Bath — •Daniel Mayer1,2, Manuel Stein1, Michael Hohmann1, Farina Kindermann1, Tobias Lausch1, Felix Schmidt1,2, and Artur Widera1,2 — 1Department of Physics and Research Center OPTIMAS, University of Kaiserslautern, Germany — 2Graduate School Materials Science in Mainz, Kaiserslautern, Germany
Our project aims on combining single, tightly controlled particles with a quantum many-body system by immersing single neutral Cesium (133Cs) atoms into a Rubidium (87Rb) Bose-Einstein condensate.
We store both species in a common, red detuned dipole trap which gives rise to dynamical interspecies interaction. To capture the dynamics of the Cs distribution interacting with a cold, thermal Rb cloud, a species selective, 1D optical lattice is used for position resolved fluorescence imaging of the single Cs atoms. The temperature for Rb and Cs atoms can be measured by release-recapture thermometry providing an additional, independent view on the interaction process.
We will give the current status on interaction dynamics between single impurities in an ultracold Rb gas.