Bose-Einstein Condensation of Europium
Bose-Einstein Condensation of Europium
复制标题
铕的玻色-爱因斯坦凝聚
DOI：
10.1103/physrevlett.129.223401
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发表时间：
2022
影响因子：
8.6
通讯作者：
Kozuma Mikio
中科院分区：
文献类型：
--
作者：
Miyazawa Yuki;Inoue Ryotaro;Matsui Hiroki;Nomura Gyohei;Kozuma Mikio
我们报道了Eu原子的玻色-爱因斯坦凝聚体的实现，这是一种具有独特性质、高度对称的电子基态和超精细结构的强偶极物种。通过交叉光偶极子陷阱中的蒸发冷却，我们产生了一种最多含有原子的凝聚体。在比较凝聚体对原子磁矩不同取向的膨胀速度后，我们估计了的散射长度，这里是玻尔半径。我们观察到1.32GFeshbach共振附近凝聚体的形变，宽度为10g。
We report the realization of a Bose-Einstein condensate of europium atoms, which is a strongly dipolar species with unique properties, a highly symmetricelectronic ground state and a hyperfine structure. By means of evaporative cooling in a crossed optical dipole trap, we produce a condensate ofcontaining up toatoms. We estimate the scattering length ofto beafter comparing the velocities of expansion of condensates to different orientations of the atomic magnetic moments, whereis the Bohr radius. We observe deformation of the condensate in the vicinity of the Feshbach resonance at 1.32 G with a width of 10 mG.