114 citations · 124 across the 5 of their papers we have counts for
5 papers
Vortex state in a superfluid Fermi gas near a Feshbach resonance
Yuki Kawaguchi, Tetsuo Ohmi
We consider a single vortex in a superfluid Fermi gas in the BCS-BEC crossover regime near a Feshbach resonance. The effect of the molecular Bose-Einstein condensate upon the vorte…
Topological Vortex Formation in BEC under Gravitational Field
Yuki Kawaguchi, Mikio Nakahara, Tetsuo Ohmi
Topological phase imprinting is a unique technique for vortex formation in a Bose-Einstein condensate (BEC) of alkali metal gas, in that it does not involve rotation: BEC is trappe…
Splitting Instability of a Multiply Charged Vortex in a Bose-Einstein Condensate
Yuki Kawaguchi, Tetsuo Ohmi
We consider the splitting mechanism of a multiply charged vortex into singly charged vortices in a Bose-Einstein condensate confined in a harmonic potential at zero temperature. Th…
Stability of Magnetically Trapped Bose-Einstein Condensates
Yuki Kawaguchi, Tetsuo Ohmi
According to the adiabatic approximation atoms moving in a magnetic trap keep their magnetic states. We investigate the validity of this approximation for quantum condensates, wher…
Continuous Creation of a Vortex in a Bose-Einstein Condensate with Hyperfine Spin F=2
Mikko Mottonen, Naoki Matsumoto, Mikio Nakahara +1
It is shown that a vortex can be continuously created in a Bose-Einstein condensate with hyperfine spin F=2 in a Ioffe-Pritchard trap by reversing the axial magnetic field adiabati…