Atom-interferometric study of Bose-Einstein condensation

被引：10

作者：

Altenmuller, TP ^{[1
]}

Muller, R ^{[1
]}

Schenzle, A ^{[1
]}

机构：

[1] UNIV MUNICH, SEKT PHYS, D-80333 MUNICH, GERMANY

来源：

PHYSICAL REVIEW A | 1997年 / 56卷 / 04期

关键词：

D O I：

10.1103/PhysRevA.56.2959

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate the influence of a Bose-Einstein condensate on the coherence properties of a traversing atomic beam. We derive a master equation describing the interaction between beam atoms and the condensate in s-wave approximation. Scattering rates are calculated and compared with the case of an ordinary Boltzmann gas. Special attention is paid to the decoherence of the beam, i.e., the decay of spatial coherence in the presence of the condensate. As an application, we explicitly calculate the visibility of the interference pattern in a double-slit experiment and indicate signs for the onset of the condensation.

引用

页码：2959 / 2971

页数：13

共 14 条

[1] QUANTUM ZENO EFFECT IN A DOUBLE-WELL POTENTIAL - A MODEL OF A PHYSICAL MEASUREMENT [J].