71 citations · 569 across the 61 of their papers we have counts for
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cond-mat.stat-mech2016★ 3 cited
Magnon-bound-state hierarchy for the two-dimensional transverse-field Ising model in the ordered phase
Yoshihiro Nishiyama
In the ordered phase for an Ising ferromagnet, the magnons are attractive to form a series of bound states with the mass gaps, . Each ratio ($m…
cond-mat.stat-mech2016★ 6 cited
Universal scaled Higgs-mass gap for the bilayer Heisenberg model in the ordered phase
Yoshihiro Nishiyama
The spectral properties for the bilayer quantum Heisenberg model were investigated with the numerical diagonalization method. In the ordered phase, there appears the massive Higgs…