38 citations · 51 across the 3 of their papers we have counts for
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cond-mat.str-el2008★ 1 cited
Quantum Phase Transitions in the Hubbard Model on Triangular Lattice
Takuya Yoshioka, Akihisa Koga, Norio Kawakami
We investigate the quantum phase transitions in the half-filled Hubbard model on the triangular lattice by means of the path-integral renormalization group (PIRG) method with a new…
cond-mat.supr-con2008★ 38 cited
Supersolid state of ultracold fermions in an optical lattice
Akihisa Koga, Takuji Higashiyama, Kensuke Inaba +2
We study ultracold fermionic atoms trapped in an optical lattice with harmonic confinement by means of the dynamical mean-field approximation. It is demonstrated that a supersolid…