Resolved-sideband Raman cooling to the ground state of an optical lattice

被引：220

作者：

Hamann, SE ^{[1
]}

Haycock, DL

Klose, G

Pax, PH

Deutsch, IH

Jessen, PS

机构：

[1] Univ Arizona, Ctr Opt Sci, Tucson, AZ 85721 USA

[2] Univ New Mexico, Dept Phys & Astron, Ctr Adv Studies, Albuquerque, NM 87131 USA

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.80.4149

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 (n) over bar(x) approximate to (n) over bar, < 0.024, corresponding to a population >95% 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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页码：4149 / 4152

页数：4

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