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Inserting single Cs atoms into an ultracold Rb gas

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Abstract

We report on the controlled insertion of individual Cs atoms into an ultracold Rb gas at ≈400 nK. This requires one to combine the techniques necessary for cooling, trapping and manipulating single laser cooled atoms around the Doppler temperature with an experiment to produce ultracold degenerate quantum gases. In our approach, both systems are prepared in separated traps and then combined. Our results pave the way for coherent interaction between a quantum gas and a single or few neutral atoms of another species.

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Acknowledgements

We gratefully acknowledge support from the science ministry of North Rhine–Westfalia (NRW MWIFT) through an independent Junior Research Group. N.S. acknowledges support from Studienstiftung des Deutschen Volkes and N.S. and C.W. from the Bonn–Cologne Graduate School.

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Authors and Affiliations

  1. Institut für Angewandte Physik, Universität Bonn, 53115, Bonn, Germany

    N. Spethmann, F. Kindermann, S. John, C. Weber & D. Meschede

  2. Fachbereich Physik und Landesforschungszentrum OPTIMAS, Universität Kaiserslautern, 67663, Kaiserslautern, Germany

    A. Widera

Authors
  1. N. Spethmann
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  2. F. Kindermann
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  3. S. John
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  4. C. Weber
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  5. D. Meschede
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  6. A. Widera
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Correspondence to A. Widera.

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Spethmann, N., Kindermann, F., John, S. et al. Inserting single Cs atoms into an ultracold Rb gas. Appl. Phys. B 106, 513–519 (2012). https://doi.org/10.1007/s00340-011-4868-6

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  • DOI: https://doi.org/10.1007/s00340-011-4868-6

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