Coherent splitting of Bose-Einstein condensed atoms with optically induced Bragg diffraction

被引：411

作者：

Kozuma, M

Deng, L

Hagley, EW

Wen, J

Lutwak, R

Helmerson, K

Rolston, SL

Phillips, WD

机构：

[1] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA

[2] Georgia So Univ, Dept Phys, Statesboro, GA 30460 USA

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.82.871

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have observed Bragg diffraction of a Bose-Einstein condensate of sodium atoms by a moving, periodic, optical potential. The coherent process of Bragg diffraction produced a splitting of the condensate with unidirectional momentum transfer. Using the momentum selectivity of the Bragg process, we separated a condensate component with a momentum width narrower than that of the original condensate. By repeatedly pulsing the optical potential while the atoms were trapped, we observed the trajectory of the split atomic wave packets in the confining magnetic potential.

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页码：871 / 875

页数：5

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