Bose-Einstein condensation of molecules
Bose-Einstein condensation of molecules
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DOI：
10.1126/science.1093280
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发表时间：
2003-12-19
期刊：
影响因子：
56.9
通讯作者：
Grimm, R
中科院分区：
文献类型：
--
作者：
Jochim, S;Bartenstein, M;Grimm, R
本文报道了从费米锂原子的自旋混合物出发，在光阱中对10（5）个以上的Li-2分子进行玻色-爱因斯坦凝聚。在强制蒸发冷却过程中，分子在Feshbach共振附近通过三体复合形成，并最终在长寿命的热平衡状态下冷凝。我们测量了一个集体激发模式的特征频率，并通过受控的冷凝溢出证明了磁场依赖的平均场。
We report on the Bose-Einstein condensation of more than 10(5) Li-2 molecules in an optical trap starting from a spin mixture of fermionic lithium atoms. During forced evaporative cooling, the molecules are formed by three-body recombination near a Feshbach resonance and finally condense in a long-lived thermal equilibrium state. We measured the characteristic frequency of a collective excitation mode and demonstrated the magnetic field-dependent mean field by controlled condensate spilling.