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

被引：7

作者：

Haycock, DL ^{[1
]}

Hamann, SE ^{[1
]}

Klose, G ^{[1
]}

Raithel, G ^{[1
]}

Jessen, PS ^{[1
]}

机构：

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

来源：

PHYSICAL REVIEW A | 1998年 / 57卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.57.R705

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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 groundstate 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.

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收藏

页码：R705 / R708

页数：4

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