52 citations · 96 across the 8 of their papers we have counts for
4 papers · 1 filter
Stability of superfluid Fermi gases in optical lattices
Yoshihiro Yunomae, Ippei Danshita, Daisuke Yamamoto +2
Critical velocities of superfluid Fermi gases in optical lattices are theoretically investigated across the BCS-BEC crossover. We calculate the excitation spectra in the presence o…
Supercurrent behavior of low-energy Bogoliubov phonon and anomalous tunneling effect in a Bose-Einstein condensate
Yoji Ohashi, Shunji Tsuchiya
We investigate tunneling properties of Bogoliubov mode in a Bose-Einstein condensate. Using an exactly solvable model with a delta-functional barrier, we show that each component i…
Anomalous enhancement of quasiparticle current near a potential barrier in a Bose-Einstein condensate
S. Tsuchiya, Y. Ohashi
We investigate tunneling properties of Bogoliubov phonons in a Bose-Einstein condensate. We find the anomalous enhancement of the quasiparticle current carried by Bogol…
Solitons in two-dimensional Bose-Einstein condensates
Shunji Tsuchiya, Franco Dalfovo, Lev P. Pitaevskii
The excitations of a two-dimensional (2D) Bose-Einstein condensate in the presence of a soliton are studied by solving the Kadomtsev-Petviashvili equation which is valid when the v…