Degenerate Fermi Gases of Ytterbium
arXiv:cond-mat/0607228 · doi:10.1103/PhysRevLett.98.030401
Abstract
An evaporative cooling was performed to cool the fermionic 173Yb atoms in a crossed optical dipole trap. The elastic collision rate, which is important for the evaporation, turns out to be large enough from our study. This large collision rate leads to efficient evaporation and we have successfully cooled the atoms below 0.6 of the Fermi temperature, that is to say, to a quantum degenerate regime. In this regime, a plunge of evaporation efficiency is observed as the result of the Fermi degeneracy.
4 pages, 3figures
References in corpus (6)
- Crossover from a molecular Bose-Einstein condensate to a degenerate Fermi gas
- Molecular Probe of Pairing in the BEC-BCS Crossover
- Ultracold fermions and the SU(N) Hubbard model
- Diatomic molecules in ultracold Fermi gases - Novel composite bosons
- A Degenerate Bose-Fermi Mixture of Metastable Atoms
- Pairing in a three component Fermi gas
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