High-density trapping of cold ytterbium atoms by an optical dipole force.
We have succeeded in trapping a high density of rare-earth atom of ytterbium (Yb) in a crossed far-off resonance trap. The peak density reaches more than 10(14) cm(-3). With a new method of a delayed crossed far-off resonance trap, we have elucidated that the atoms became concentrated into the cross region by atom-atom collisions. We trap fermionic Yb atoms in the same way as bosonic ones.
Takasu
Y
Y
Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan.
Honda
K
K
Komori
K
K
Kuwamoto
T
T
Kumakura
M
M
Takahashi
Y
Y
Yabuzaki
T
T