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Cavity QED with a Bose–Einstein condensate

Author

Listed:
  • Ferdinand Brennecke

    (Institute for Quantum Electronics, ETH Zürich, 8093 Zürich, Switzerland)

  • Tobias Donner

    (Institute for Quantum Electronics, ETH Zürich, 8093 Zürich, Switzerland)

  • Stephan Ritter

    (Institute for Quantum Electronics, ETH Zürich, 8093 Zürich, Switzerland)

  • Thomas Bourdel

    (Laboratoire Charles Fabry, Institut d'Optique, Campus Polytechnique, RD 128, F91127 Palaiseau cedex, France)

  • Michael Köhl

    (Cavendish Laboratory, University of Cambridge)

  • Tilman Esslinger

    (Institute for Quantum Electronics, ETH Zürich, 8093 Zürich, Switzerland)

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

  • Ferdinand Brennecke & Tobias Donner & Stephan Ritter & Thomas Bourdel & Michael Köhl & Tilman Esslinger, 2007. "Cavity QED with a Bose–Einstein condensate," Nature, Nature, vol. 450(7167), pages 268-271, November.
    • Handle: RePEc:nat:nature:v:450:y:2007:i:7167:d:10.1038_nature06120
    DOI: 10.1038/nature06120
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