64 citations · 306 across the 38 of their papers we have counts for
11 papers · 1 filter
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 $…
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…
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…
Experimentally accessible reentrant phase transitions in double-well optical lattices
Ippei Danshita, Carlos A. R. Sa de Melo, Charles W. Clark
We study the quantum phases of bosons confined in a combined potential of a one-dimensional double-well optical lattice and a parabolic trap. We apply the time-evolving block decim…
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.…