Degenerate fermi gases of ytterbium
Degenerate fermi gases of ytterbium
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DOI：
10.1103/physrevlett.98.030401
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发表时间：
2007-01-19
影响因子：
8.6
通讯作者：
Takahashi, Yoshiro
中科院分区：
文献类型：
--
作者：
Fukuhara, Takeshi;Takasu, Yosuke;Takahashi, Yoshiro
利用蒸发冷却技术对交叉光偶极阱中的Yb-173原子进行了冷却。大的弹性碰撞率导致有效的蒸发，我们已经成功地冷却原子到费米温度的0.37 +/- 0.06，也就是说，到量子简并区。在这种情况下，由于费米简并，蒸发效率急剧下降。
Evaporative cooling was performed to cool fermionic Yb-173 atoms in a crossed optical dipole trap. The large elastic collision rate leads to efficient evaporation and we have successfully cooled the atoms to 0.37 +/- 0.06 of the Fermi temperature, that is to say, to a quantum degenerate regime. In this regime, a plunge of evaporation efficiency was observed as a result of Fermi degeneracy.