141 citations · 879 across the 49 of their papers we have counts for
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Gutzwiller study of spin-1 bosons in an optical lattice under a magnetic field
Takashi Kimura, Shunji Tsuchiya, Makoto Yamashita +1
We study spin-1 bosons in an optical lattice under a magnetic field by the Gutzwiller approximation. Our results thus obtained join the discontinuous phase boundary curves obtained…
Bogoliubov Excitations in a Kronig-Penney Potential
Ippei Danshita, Susumu Kurihara, Shunji Tsuchiya
With use of the Kronig-Penney model, we study the excitation spectrum of a Bose-Einstein condensate in a one-dimensional periodic potential. We solve the Bogoliubov equations analy…
Landau damping of Bogoliubov excitations in optical lattices at finite temperature
S. Tsuchiya, A. Griffin
We study the damping of Bogoliubov excitations in an optical lattice at finite temperatures. For simplicity, we consider a Bose-Hubbard tight-binding model and limit our analysis t…