镱同位素的玻色-爱因斯坦凝聚
Bose-Einstein Condensation of an Ytterbium Isotope
摘要：
本文报道了在镱（170 Yb）玻色子同位素中观察到的玻色-爱因斯坦凝聚体。超过10^6个原子被困在交叉的光学偶极阱中，并通过蒸发冷却。已经得到了大约10^4个原子的凝聚体。从凝聚体的展开式中，我们得到散射长度a=3.6（9）nm。
英文摘要：
We report the observation of a Bose Einstein condensate in a bosonic isotope of ytterbium (170Yb). More than 10^6 atoms are trapped in a crossed optical dipole trap and cooled by evaporation. Condensates of approximately 10^4 atoms have been obtained. From an expansion of the condensate, we have extracted the scattering length a=3.6(9) nm.
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