Deeply subrecoil two-dimensional Raman cooling
Deeply subrecoil two-dimensional Raman cooling
复制标题
深度亚反冲二维拉曼冷却
DOI:
--
复制
发表时间:
2004
期刊:
影响因子:
--
通讯作者:
W. Phillips
中科院分区:
文献类型:
--
作者:
V. Boyer;L. Lising;S. Rolston;W. Phillips
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 velocities, corresponding to an effective transverse temperature of 30 nK (0.15T{sub rec}). This technique can be useful to improve cold-atom atomic clocks and is particularly relevant for clocks in microgravity.