Ground State Laser Cooling Using Electromagnetically Induced Transparency

Giovanna Morigi, Jürgen Eschner, and Christoph H. Keitel
Phys. Rev. Lett. 85, 4458 – Published 20 November 2000
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Abstract

A laser cooling method for trapped atoms is described which achieves ground state cooling by exploiting quantum interference in a driven Λ-shaped arrangement of atomic levels. The scheme is technically simpler than existing methods of sideband cooling, yet it can be significantly more efficient, in particular when several motional modes are involved, and it does not impose restrictions on the transition linewidth. We study the full quantum mechanical model of the cooling process for one motional degree of freedom and show that a rate equation provides a good approximation.

  • Received 5 May 2000

DOI:https://doi.org/10.1103/PhysRevLett.85.4458

©2000 American Physical Society

Authors & Affiliations

Giovanna Morigi1, Jürgen Eschner2, and Christoph H. Keitel3

  • 1Max-Planck Institut für Quantenoptik, D-85748 Garching, Germany
  • 2Institut für Experimentalphysik, University of Innsbruck, A-6020 Innsbruck, Austria
  • 3Theoretische Quantendynamik, Fakultät für Physik, University of Freiburg, D-79104 Freiburg, Germany

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Vol. 85, Iss. 21 — 20 November 2000

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