Matter-wave interferometry with phase fluctuating Bose-Einstein condensates

被引：56

作者：

Jo, G. -B. ^{[1
]}

Choi, J. -H. ^{[1
]}

Christensen, C. A. ^{[1
]}

Lee, Y. -R. ^{[1
]}

Pasquini, T. A. ^{[1
]}

Ketterle, W. ^{[1
]}

Pritchard, D. E. ^{[1
]}

机构：

[1] MIT, Harvard Ctr Ultracold Atoms, Dept Phys, Elect Res Lab, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.99.240406

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Elongated Bose-Einstein condensates (BECs) exhibit strong spatial phase fluctuations even well below the BEC transition temperature. We demonstrate that atom interferometers using such condensates are robust against phase fluctuations; i.e., the relative phase of the split condensate is reproducible despite axial phase fluctuations. However, larger phase fluctuations limit the coherence time, especially in the presence of some asymmetries in the two wells of the interferometer.

引用

页数：4

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