Degenerate Fermi Gases of Ytterbium

Details Degenerate Fermi Gases of Ytterbium Degenerate Fermi Gases of Ytterbium

2006-07-10

arxiv.org/abs/cond-mat/0607228v2

Phys. Rev. Lett. 98, 030401 (2007)

Physics

Condensed Matter

Other Condensed Matter

4 pages, 3figures

Scientific paper

10.1103/PhysRevLett.98.030401

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.

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