Degenerate fermi gases of ytterbium

被引：271

作者：

Fukuhara, Takeshi ^{[1
]}

Takasu, Yosuke

Kumakura, Mitsutaka

Takahashi, Yoshiro

机构：

[1] Kyoto Univ, Grad Sch Sci, Dept Phys, Kyoto 6068502, Japan

[2] Kyoto Univ, Grad Sch Engn, Dept Elect Sci & Engn, Kyoto 6158510, Japan

[3] Japan Sci & Technol Agcy, CREST, Kawaguchi, Saitama 3320012, Japan

[4] Japan Sci & Technol Agcy, PRESTO, Kawaguchi, Saitama 3320012, Japan

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.98.030401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

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页数：4

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