Magnetic trapping of long-lived cold Rydberg atoms

被引：68

作者：

Choi, JH ^{[1
]}

Guest, JR ^{[1
]}

Povilus, AP ^{[1
]}

Hansis, E ^{[1
]}

Raithel, G ^{[1
]}

机构：

[1] Univ Michigan, Dept Phys, FOCUS Ctr, Ann Arbor, MI 48109 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.95.243001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on the trapping of long-lived strongly magnetized Rydberg atoms. Rb-85 atoms are laser cooled and collected in a superconducting magnetic trap with a strong bias field (2.9 T) and laser excited to Rydberg states. Collisions scatter a small fraction of the Rydberg atoms into long-lived high-angular momentum "guiding-center" Rydberg states, which are magnetically trapped. The Rydberg atomic cloud is examined using a time-delayed, position-sensitive probe. We observe magnetic trapping of these Rydberg atoms for times up to 200 ms. Oscillations of the Rydberg-atom cloud in the trap reveal an average magnetic moment of the trapped Rydberg atoms of approximate to-8 mu(B). These results provide guidance for other Rydberg-atom trapping schemes and illuminate a possible route for trapping antihydrogen.

引用

页数：4

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