Deeply subrecoil two-dimensional Raman cooling
Atomic Physics
2009-11-10 v2
Abstract
We report the implementation of a two-dimensional Raman cooling scheme using sequential excitations along the orthogonal axes. Using square pulses, we have cooled a cloud of ultracold Cesium atoms down to an RMS velocity spread of 0.39(5) recoil velocity, corresponding to an effective temperature of 30 nK (0.15 T_rec). This technique can be useful to improve cold atom atomic clocks, and is particularly relevant for clocks in microgravity.
Keywords
Cite
@article{arxiv.physics/0404012,
title = {Deeply subrecoil two-dimensional Raman cooling},
author = {V. Boyer and L. J. Lising and S. L. Rolston and W. D. Phillips},
journal= {arXiv preprint arXiv:physics/0404012},
year = {2009}
}
Comments
8 pages, 6 figures, submitted to Phys. Rev. A