Diffraction of a Bose-Einstein condensate in the time domain
Diffraction of a Bose-Einstein condensate in the time domain
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DOI：
10.1103/physreva.72.061601
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发表时间：
2005-12-01
影响因子：
2.9
通讯作者：
Lorent, V
中科院分区：
文献类型：
--
作者：
Colombe, Y;Mercier, B;Lorent, V
我们观察到铷原子玻色-爱因斯坦凝聚体在振镜势上的衍射。物质波包垂直入射到蓝失谐倏逝光场上，经过3.6 mm的自由落体后反弹回来。反射镜以500 kHz的频率振动，振幅为3 nm。原子的载流子和边带在它们的弹道膨胀期间直接成像。衍射原子波包的位置和相对重量与Henkel的理论预测非常一致[J. Phys. II 4，1877（1994）]。
We have observed the diffraction of a Bose-Einstein condensate of rubidium atoms on a vibrating mirror potential. The matter wave packet bounces back at normal incidence on a blue-detuned evanescent light field after a 3.6 mm free fall. The mirror vibrates at a frequency of 500 kHz with an amplitude of 3 nm. The atomic carrier and side bands are directly imaged during their ballistic expansion. The locations and the relative weights of the diffracted atomic wave packets are in very good agreement with the theoretical prediction of Henkel [J. Phys. II 4, 1877 (1994)].