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Efficient rotational cooling of Coulomb-crystallized molecular ions by a helium buffer gas

Author

Listed:
  • A. K. Hansen

    (The Danish National Research Foundation Center for Quantum Optics – QUANTOP, Aarhus University, DK-8000 Aarhus C, Denmark)

  • O. O. Versolato

    (Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany)

  • Ł. Kłosowski

    (Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University, Grudziadzka 5, 87-100 Torun, Poland)

  • S. B. Kristensen

    (The Danish National Research Foundation Center for Quantum Optics – QUANTOP, Aarhus University, DK-8000 Aarhus C, Denmark)

  • A. Gingell

    (The Danish National Research Foundation Center for Quantum Optics – QUANTOP, Aarhus University, DK-8000 Aarhus C, Denmark)

  • M. Schwarz

    (Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany)

  • A. Windberger

    (Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany)

  • J. Ullrich

    (Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany
    Physikalisch-Technische Bundesanstalt, Bundesallee 100, D-38116 Braunschweig, Germany)

  • J. R. Crespo López-Urrutia

    (Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany)

  • M. Drewsen

    (The Danish National Research Foundation Center for Quantum Optics – QUANTOP, Aarhus University, DK-8000 Aarhus C, Denmark)

Abstract

In combination with sympathetic cooling of translational degrees of freedom (leading to Coulomb crystallization), cooling of the rotational degrees of freedom of magnesium hydride ions using a helium buffer gas leads to temperatures in a tunable range from 60 kelvin down to about 7 kelvin for a single ion, the lowest such temperature so far recorded.

Suggested Citation

  • A. K. Hansen & O. O. Versolato & Ł. Kłosowski & S. B. Kristensen & A. Gingell & M. Schwarz & A. Windberger & J. Ullrich & J. R. Crespo López-Urrutia & M. Drewsen, 2014. "Efficient rotational cooling of Coulomb-crystallized molecular ions by a helium buffer gas," Nature, Nature, vol. 508(7494), pages 76-79, April.
    • Handle: RePEc:nat:nature:v:508:y:2014:i:7494:d:10.1038_nature12996
    DOI: 10.1038/nature12996
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