141 citations · 926 across the 59 of their papers we have counts for
6 papers · 1 filter
Axisymmetric versus Non-axisymmetric Vortices in Spinor Bose-Einstein Condensates
T. Mizushima, K. Machida, T. Kita
The structure and stability of various vortices in F=1 spinor Bose-Einstein condensates are investigated by solving the extended Gross-Pitaevskii equation under rotation. We perfor…
Unconventional Vortices and Phase Transitions in Rapidly Rotating Superfluid ^{3}He
Takafumi Kita
This paper studies vortex-lattice phases of rapidly rotating superfluid ^3He based on the Ginzburg-Landau free-energy functional. To identify stable phases in the p-Omega plane (p:…
Theory of de Haas-van Alphen Effect in Type-II Superconductors
Kouji Yasui, Takafumi Kita
Theory of quasiparticle spectra and the de Haas-van Alphen (dHvA) oscillation in type-II superconductors are developed based on the Bogoliubov-de Gennes equations for vortex-lattic…
Spinor Bose-Einstein Condensates with Many Vortices
T. Kita, T. Mizushima, K. Machida
Vortex-lattice structures of antiferromagnetic spinor Bose-Einstein condensates with hyperfine spin F=1 are investigated theoretically based on the Ginzburg-Pitaevskii equations ne…
Mermin-Ho vortex in ferromagnetic spinor Bose-Einstein condensates
T. Mizushima, K. Machida, T. Kita
The Mermin-Ho and Anderson-Toulouse coreless non-singular vortices are demonstrated to be thermodynamically stable in ferromagnetic spinor Bose-Einstein condensates with the hyperf…
On the density matrix of nonequilibrium steady-state statistical mechanics
Takafumi Kita
This paper derives a density matrix of the steady-state statistical mechanics compatible with the steady-state thermodynamics proposed by Oono and Paniconi [Prog. Theor. Phys. Supp…