99 citations · 610 across the 30 of their papers we have counts for
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Dynamical instability in the S=1 Bose-Hubbard model
Rui Asaoka, Hiroki Tsuchiura, Makoto Yamashita +1
We study the dynamical instabilities of superfluid flows in the S=1 Bose-Hubbard model. The time evolution of each spin component in a condensate is calculated based on the dynamic…
Density Modulations Associated with the Dynamical Instability in the Bose-Hubbard Model
Rui Asaoka, Hiroki Tsuchiura, Makoto Yamashita +1
A superfluid flow beyond a critical momentum in an optical lattice decays drastically by the interplay between nonlinearity due to the interparticle interactions in Bose-Einstein c…
Mott Transition and Spin Structures of Spin-1 Bosons in Two-Dimensional Optical Lattice at Unit Filling
Yuta Toga, Hiroki Tsuchiura, Makoto Yamashita +2
We study the ground state properties of spin-1 bosons in a two-dimensional optical lattice, by applying a variational Monte Carlo method to the S=1 Bose-Hubbard model on a square l…