26 citations · 29 across the 3 of their papers we have counts for
3 papers
cond-mat.str-el2025
Generalization of the Affleck-Kennedy-Lieb-Tasaki Model for Quantum Ferromagnetism
Isao Maruyama, Shin Miyahara
We study a spin- ferromagnetic model with exactly-written ground states, known as the partially-magnetized valence bond solid (VBS) states with magnetization , which…
cond-mat.str-el2023★ 3 cited
Ferromagnetic Haldane state and dimer multiplet state of quantum ferromagnets
Shin Miyahara, Isao Maruyama
We present a theory of the realization of a ferromagnetic Haldane state in a spin-2 bilinear-biquadratic spin system on an orthogonal-dimer chain. The coexistence of a ferromagneti…
cond-mat.str-el2008★ 26 cited
Topological Identification of Spin-1/2 Two-Leg Ladder with Four-Spin Ring Exchange
I. Maruyama, T. Hirano, Y. Hatsugai
A spin-1/2 two-leg ladder with four-spin ring exchange is studied by quantized Berry phases, used as local order parameters. Reflecting local objects, non-trivial () Berry phase…