1 citations · 1 across the 1 of their papers we have counts for
9 papers
Ground-state phase diagram of the SU() Heisenberg model on a plaquette lattice
Ryui Kaneko, Shimpei Goto, Ippei Danshita
We investigate the ground state of the SU() Heisenberg model on a square lattice with spatial anisotropy on each plaquette bond using the tensor-network method based on infinite…
Symmetry-protected topological phases and competing orders in a spin-1/2 XXZ ladder with a four-spin interaction
Takuhiro Ogino, Shunsuke Furukawa, Ryui Kaneko +2
We study a spin-1/2 XXZ model with a four-spin interaction on a two-leg ladder. By means of effective field theory and matrix product state calculations, we obtain rich ground-stat…
Reentrance of the Disordered Phase in the Antiferromagnetic Ising Model on a Square Lattice with Longitudinal and Transverse Magnetic Fields
Ryui Kaneko, Yoshihide Douda, Shimpei Goto +1
Motivated by recent experiments with Rydberg atoms in an optical tweezer array, we accurately map out the ground-state phase diagram of the antiferromagnetic Ising model on a squar…
Matrix product state approach for a quantum system at finite temperatures using random phases and Trotter gates
Shimpei Goto, Ryui Kaneko, Ippei Danshita
We develop a numerical method based on matrix product states for simulating quantum many-body systems at finite temperatures without importance sampling and evaluate its performanc…
Continuous phase transition between Neel and valence bond solid phases in a J-Q-like spin ladder system
Takuhiro Ogino, Ryui Kaneko, Satoshi Morita +2
We investigate a quantum phase transition between a Neel phase and a valence bond solid (VBS) phase, in each of which a different Z2 symmetry is broken, in a spin-1/2 two-leg XXZ l…
Magnetic field induced quantum phases in a tensor network study of Kitaev magnets
Hyun-Yong Lee, Ryui Kaneko, Li Ern Chern +4
Recent discovery of the half quantized thermal Hall conductivity in -RuCl, a candidate material for the Kitaev spin liquid, suggests the presence of a highly entangled quant…