95 citations · 629 across the 25 of their papers we have counts for
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cond-mat.stat-mech2005
Field-induced Berezinskii-Kosterlitz-Thouless transition and string-density plateau in the anisotropic triangular antiferromagnetic Ising model
Hiromi Otsuka, Yutaka Okabe, Kouichi Okunishi
The field-induced Berezinskii-Kosterlitz-Thouless (BKT) transition in the ground state of the triangular antiferromagnetic Ising model is studied by the level-spectroscopy method.…
cond-mat.stat-mech2005★ 11 cited
Real-space renormalization group approach for the corner Hamiltonian
Kouichi Okunishi
We present a real-space renormalization group approach for the corner Hamiltonian, which is relevant to the reduced density matrix in the density matrix renormalization group. A se…