64 citations · 155 across the 6 of their papers we have counts for
6 papers
Matter-wave dark solitons in a double-well potential
Ryoko Ichihara, Ippei Danshita, Tetsuro Nikuni
We study stability of the first excited state of quasi-one-dimensional Bose-Einstein condensates in a double-well potential, which is called "-state". The density notch in the $…
Heavily Damped Motion of One-Dimensional Bose Gases in an Optical Lattice
Ippei Danshita, Charles W. Clark
We study the dynamics of strongly correlated one-dimensional Bose gases in a combined harmonic and optical lattice potential subjected to sudden displacement of the confining poten…
Creating a supersolid in one-dimensional Bose mixtures
L. Mathey, Ippei Danshita, Charles W. Clark
We identify a one-dimensional supersolid phase in a binary mixture of near-hardcore bosons with weak, local inter-species repulsion. We find realistic conditions under which such a…
Quantum phases of bosons in double-well optical lattices
Ippei Danshita, James E. Williams, Carlos A. R. Sa de Melo +1
We study the superfluid to Mott insulator transition of bosons in a two-legged ladder optical lattice, of a type accessible in current experiments on double-well optical lattices.…
Comment on ``Nonlinear band structure in Bose-Einstein condensates: Nonlinear Schödinger equation with a Kronig Penney potential"
Ippei Danshita, Shunji Tsuchiya
In their recent paper [Phys. Rev. A 71, 033622], B. T. Seaman et al. studied Bloch states of the condensate wave function in a Kronig-Penney potential and calculated the band struc…
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…