17 citations · 23 across the 4 of their papers we have counts for
3 papers · 1 filter
Entanglement-based tensor-network strong-disorder renormalization group
Kouichi Seki, Toshiya Hikihara, Kouichi Okunishi
We propose an entanglement-based algorithm of the tensor-network strong-disorder renormalization group (tSDRG) method for quantum spin systems with quenched randomness. In contrast…
Tensor-network strong-disorder renormalization groups for random quantum spin systems in two dimensions
Kouichi Seki, Toshiya Hikihara, Kouichi Okunishi
Novel randomness-induced disordered ground states in two-dimensional (2D) quantum spin systems have been attracting much interest. For quantitative analysis of such random quantum…
Spin-wave analysis for Kagome-triangular spin system and coupled spin tubes: low-energy excitation for the cuboc order
Masahiro Ochiai, Kouichi Seki, Kouichi Okunishi
The coupled spin tube system, which is equivalent to a stacked Kagome-triangular spin system, exhibits the cuboc order -- a non-coplanar spin order with a twelve-sublattice structu…