AN INTERFEROMETER FOR ATOMS

被引：490

作者：

KEITH, DW

EKSTROM, CR

TURCHETTE, QA

PRITCHARD, DE

机构：

[1] Massachusetts Institute of Technology, Cambridge

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.66.2693

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have demonstrated an interferometer for atoms. A three-grating geometry is used, in which the interfering beams are distinctly separated in both position and momentum. We used a highly collimated beam of sodium atoms with a de Broglie wavelength of 16 pm and high-quality 0.4-mu-m-period free-standing gratings which we fabricated using a novel method. The interference signal is 70 counts/s, which allows us to determine the phase to 0.1 rad in 1 min. Applications of atom interferometers are briefly discussed.

引用

页码：2693 / 2696

页数：4

共 21 条

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