30 citations · 114 across the 5 of their papers we have counts for
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Out-of-equilibrium dynamics of multiple second-order quantum phase transitions in extended Bose-Hubbard model: Superfluid, supersolid and density wave
Keita Shimizu, Takahiro Hirano, Jonghoon Park +2
In this paper, we study the dynamics of the Bose-Hubbard model with the nearest-neighbor repulsion by using time-dependent Gutzwiller methods. Near the unit filling, the phase diag…
Dynamics of first-order quantum phase transitions in extended Bose-Hubbard model: From density wave to superfluid and vice-versa
Keita Shimizu, Takahiro Hirano, Jonghoon Park +2
In this paper, we study the nonequilibrium dynamics of the Bose-Hubbard model with the nearest-neighbor repulsion by using time-dependent Gutzwiller (GW) methods. In particular, we…
Dynamics of a quantum phase transition in the Bose-Hubbard model: Kibble-Zurek mechanism and beyond
Keita Shimizu, Yoshihito Kuno, Takahiro Hirano +1
In this paper, we study the dynamics of the Bose-Hubbard model by using time-dependent Gutzwiller methods. In particular, we vary the parameters in the Hamiltonian as a function of…
Various Topological Mott insulators in strongly-interacting boson system in one-dimensional superlattice
Yoshihito Kuno, Keita Shimizu, Ikuo Ichinose
In this paper, we study a one-dimensional boson system in a superlattice potential.This system is experimentally feasible by using ultracold atomic gases,and attracts much attentio…
Bosonic Analogs of Fractional Quantum Hall State in the Vicinity of Mott States
Yoshihito Kuno, Keita Shimizu, Ikuo Ichinose
In the present paper, the Bose-Hubbard model (BHM) with the nearest-neighbor (NN) repulsions is studied from the view point of possible bosonic analogs of the fractional quantum Ha…