Resolved-sideband Raman cooling to the ground state of an optical lattice
Quantum Physics
2009-10-31 v1
Abstract
We trap neutral Cs atoms in a two-dimensional optical lattice and cool them close to the zero-point of motion by resolved-sideband Raman cooling. Sideband cooling occurs via transitions between the vibrational manifolds associated with a pair of magnetic sublevels and the required Raman coupling is provided by the lattice potential itself. We obtain mean vibrational excitations \bar{n}_x \approx \bar{n}_y \approx 0.01, corresponding to a population \sim 98% in the vibrational ground state. Atoms in the ground state of an optical lattice provide a new system in which to explore quantum state control and subrecoil laser cooling
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Cite
@article{arxiv.quant-ph/9801025,
title = {Resolved-sideband Raman cooling to the ground state of an optical lattice},
author = {S. E. Hamann and D. L. Haycock and G. Klose and P. H. Pax and I. H. Deutsch and P. S. Jessen},
journal= {arXiv preprint arXiv:quant-ph/9801025},
year = {2009}
}
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PDF file, 13 pages including 3 figures