14 citations · 17 across the 3 of their papers we have counts for
3 papers
cond-mat.mes-hall2025★ 3 cited
Hall effect in topologically trivial isolated flat-band systems
Raigo Nagashima, Masao Ogata, Naoto Tsuji
We study the Hall effect in topologically trivial isolated flat-band systems (i.e., flat bands are separated from other bands and have zero Chern number) for a weak magnetic field.…
cond-mat1995★ 14 cited
One-Dimensional t-J Model from a Variational Viewpoint
Hisatoshi Yokoyama, Masao Ogata
The one-dimensional (1D) - model is investigated by using a Gutzwiller-Jastrow-type variation method and the exact diagonalization of small systems. Variational expectation v…
cond-mat1995
Variational Monte Carlo Studies of t-J-type Models
Hisatoshi Yokoyama, Yoshio Kuramoto, Masao Ogata
We give a brief review of recent developments by the variational Monte Carlo method, in addition to some new results. We discuss --type models: the ordinary - model in…