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Strong atom–field coupling for Bose–Einstein condensates in an optical cavity on a chip

Author

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  • Yves Colombe

    (Laboratoire Kastler Brossel, ENS/UPMC-Paris 6/CNRS, 24 rue Lhomond, 75005 Paris, France)

  • Tilo Steinmetz

    (Laboratoire Kastler Brossel, ENS/UPMC-Paris 6/CNRS, 24 rue Lhomond, 75005 Paris, France
    Max-Planck-Institut für Quantenoptik/LMU, Schellingstr. 4, 80799 München, Germany)

  • Guilhem Dubois

    (Laboratoire Kastler Brossel, ENS/UPMC-Paris 6/CNRS, 24 rue Lhomond, 75005 Paris, France)

  • Felix Linke

    (Laboratoire Kastler Brossel, ENS/UPMC-Paris 6/CNRS, 24 rue Lhomond, 75005 Paris, France
    Present address: BMW Group, Abt. Instrumentierung und Displays, Knorrstr. 147, D-80788 München, Germany.)

  • David Hunger

    (Max-Planck-Institut für Quantenoptik/LMU, Schellingstr. 4, 80799 München, Germany)

  • Jakob Reichel

    (Laboratoire Kastler Brossel, ENS/UPMC-Paris 6/CNRS, 24 rue Lhomond, 75005 Paris, France)

Abstract

When light matters A central goal of physics is to understand the interaction between matter and light. In cavity quantum electrodynamics, an optical resonator can be used to enhance this interaction for atoms. Previous studies have demonstrated 'strong coupling', a regime in which the radiative properties of individual atoms are intimately linked to the state of the optical field. Two groups have now demonstrated a conceptually new regime of cavity quantum electrodynamics. The atoms are cooled until they form a Bose–Einstein condensate (occupying a single mode of a matter-wave field) and couple identically and strongly to the light field, sharing a single excitation. This may open the way for applications in quantum communication and information processing.

Suggested Citation

  • Yves Colombe & Tilo Steinmetz & Guilhem Dubois & Felix Linke & David Hunger & Jakob Reichel, 2007. "Strong atom–field coupling for Bose–Einstein condensates in an optical cavity on a chip," Nature, Nature, vol. 450(7167), pages 272-276, November.
    • Handle: RePEc:nat:nature:v:450:y:2007:i:7167:d:10.1038_nature06331
    DOI: 10.1038/nature06331
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