Enhanced laser cooling and state preparation in an optical lattice with a magnetic field

D. L. Haycock, S. E. Hamann, G. Klose, G. Raithel, Poul S Jessen

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Abstract

We demonstrate that weak magnetic fields can significantly enhance laser cooling and state preparation of Cs atoms in a one-dimensional optical lattice. A field parallel to the lattice axis increases the vibrational ground-state population of the stretched state |m = F) to 28%. A transverse field reduces the kinetic temperature. Quantum Monte Carlo simulations agree with the experiment, and predict 45% ground-state population for optimal parallel and transverse fields. Our results show that coherent mixing and local energy relaxation play important roles in laser cooling of large-F atoms.

Original languageEnglish (US)
JournalPhysical Review A
Volume57
Issue number2
Publication statusPublished - Feb 1998

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ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Atomic and Molecular Physics, and Optics

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