Submicron spatial modulation of an interatomic interaction in a Bose-Einstein condensate.
Submicron spatial modulation of an interatomic interaction in a Bose-Einstein condensate.
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DOI：
10.1103/physrevlett.105.050405
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发表时间：
2010-05
影响因子：
8.6
通讯作者：
R. Yamazaki;S. Taie;S. Sugawa;Y. Takahashi
中科院分区：
文献类型：
--
作者：
R. Yamazaki;S. Taie;S. Sugawa;Y. Takahashi
我们展示了镱（Yb）玻色-爱因斯坦凝聚体中原子间相互作用的亚微米空间控制。在光学Feshbach共振附近调谐的脉冲光学驻波在驻波图案上连续地改变s波散射长度。通过飞行时间图像中的衍射图案监测具有每278 nm的空间周期的调制平均场能量。我们观察到一个广泛的散射长度控制高达250 nm。所展示的散射长度的空间调制证明了原子相互作用的高分辨率控制是可能的。
We demonstrate submicron spatial control of interatomic interactions in a Bose-Einstein condensate of ytterbium (Yb). A pulsed optical standing wave, tuned near an optical Feshbach resonance, varies the s-wave scattering length continuously across the standing wave pattern. The modulated mean-field energy with a spatial period every 278 nm is monitored by a diffraction pattern in a time-of-flight image. We observe a wide scattering length control of up to 250 nm. The demonstrated spatial modulation of the scattering length proves that high resolution control of atomic interactions is possible.