title: High-density trapping of cold ytterbium atoms by an optical dipole force.
abstract: 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.
authors.affiliation: Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Takasu
authors.forename: K
authors.initials: K
authors.lastname: Honda
authors.forename: K
authors.initials: K
authors.lastname: Komori
authors.forename: T
authors.initials: T
authors.lastname: Kuwamoto
authors.forename: M
authors.initials: M
authors.lastname: Kumakura
authors.forename: Y
authors.initials: Y
authors.lastname: Takahashi
authors.forename: T
authors.initials: T
authors.lastname: Yabuzaki