Degenerate Fermi Gases of Ytterbium

Journal Article · Fri Jan 19 00:00:00 EST 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.98.030401· OSTI ID:20861606

Fukuhara, Takeshi ^[1]; Takasu, Yosuke ^[2]; Kumakura, Mitsutaka ^[1]; Takahashi, Yoshiro ^[1]

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1. Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502 (Japan)
2. Department of Electronic Science and Engineering, Graduate School of Engineering, Kyoto University, Kyoto 615-8510 (Japan)

Evaporative cooling was performed to cool fermionic {sup 173}Yb 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.

• OSTI ID: 20861606
• Journal Information: Physical Review Letters, Vol. 98, Issue 3; Other Information: DOI: 10.1103/PhysRevLett.98.030401; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ATOMS
DIPOLES
EVAPORATION
EVAPORATIVE COOLING
FERMI GAS
FERMIONS
YTTERBIUM 173