252 citations · 2.2k across the 89 of their papers we have counts for
Showing 2006Show all
3 papers · 1 filter
cond-mat.other2006★ 38 cited
Stability of Bose-Einstein condensates in a Kronig-Penney potential
Ippei Danshita, Shunji Tsuchiya
We study the stability of Bose-Einstein condensates with superfluid currents in a one-dimensional periodic potential. By using the Kronig-Penney model, the condensate and Bogoliubo…
cond-mat.other2006★ 1 cited
Landau and dynamical instabilities of Bose-Einstein condensates with superfluid flow in a Kronig-Penney potential
Ippei Danshita, Shunji Tsuchiya
We study the elementary excitations of Bose-Einstein condensates in a one-dimensional periodic potential and discuss the stability of superfluid flow based on the Kronig-Penney mod…
cond-mat.other2006★ 31 cited
Landau damping: instability mechanism of superfluid Bose gases moving in optical lattices
Kiyohito Iigaya, Satoru Konabe, Ippei Danshita +1
We investigate Landau damping of Bogoliubov excitations in a dilute Bose gas moving in an optical lattice at finite temperatures. Using a 1D tight-binding model, we explicitly obta…