用原子激光探测玻色-爱因斯坦凝聚体。

Probing a Bose-Einstein condensate with an atom laser.

作者信息

Döring D, Robins N P, Figl C, Close J D

机构信息

Physics Department, Australian Research Council Centre of Excellence for Quantum-Atom Optics, The Australian National University, Canberra, Australia.

出版信息

Opt Express. 2008 Sep 1;16(18):13893-900. doi: 10.1364/oe.16.013893.

DOI:10.1364/oe.16.013893

PMID:18773000

Abstract

A pulsed atom laser derived from a Bose-Einstein condensate is used to probe a second target condensate. The target condensate scatters the incident atom laser pulse. From the spatial distribution of scattered atoms, one can infer important properties of the target condensate and its interaction with the probe pulse. As an example, we measure the s-wave scattering length that, in low energy collisions, describes the interaction between the |F = 1,m(F) = -1) and |F = 2,m(F) = 0) hyperfine ground states in (87)Rb.

摘要

一种源自玻色-爱因斯坦凝聚体的脉冲原子激光被用于探测第二个目标凝聚体。目标凝聚体散射入射的原子激光脉冲。从散射原子的空间分布中，可以推断出目标凝聚体的重要性质及其与探测脉冲的相互作用。例如，我们测量了s波散射长度，在低能碰撞中，它描述了（87）Rb中|F = 1，m（F）= -1）和|F = 2，m（F）= 0）超精细基态之间的相互作用。