Okayama University of Science

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20022026

most citedCombined Measurement of the Higgs Boson Mass in

pp

Collisions at

s = 7

and 8 TeV with the ATLAS and CMS Experiments

1.4k citations

Showing cond-mat.stat-mechShow all

20 papers · 1 filter

cond-mat.stat-mech2026

Longitudinal-field fidelity susceptibility analysis of the $J_{1}$ - $J_{2}$ transverse-field Ising model around $J_{2} / J_{1} \approx 0.5$

Yoshihiro Nishiyama

The square-lattice $J_{1}$ - $J_{2}$ transverse-field (TF) Ising model was investigated with the exact diagonalization (ED) method. In order to analyze the TF-driven phase transition, we…

cond-mat.stat-mech2025★ 1 cited

Critical exponents of fluid-fluid interfacial tensions near a critical endpoint in a nonwetting gap

Joseph O. Indekeu, Kenichiro Koga

Fluid three-phase equilibria, with phases $α, β, γ$ , are studied close to a tricritical point, analytically and numerically, in a mean-field density-functional theory with two dens…

cond-mat.stat-mech2025

Two-dimensional transverse-field $X Y$ model with the in-plane anisotropy and Dzyaloshinskii-Moriya interaction: Anisotropy-driven transition

Yoshihiro Nishiyama

The two-dimensional (2D) quantum spin- $S = 1/2$ $X Y$ model with the transverse-field $H$ , in-plane-anisotropy $γ$ , and Dzyaloshinskii-Moriya (DM) $D$ interactions was investigated by…

cond-mat.stat-mech2024

$X Y$ -VBS phase boundary for the square-lattice $J_{1}$ - $J_{2}$ $X X Z$ model with the ring exchange

Yoshihiro Nishiyama

The square-lattice $J_{1}$ - $J_{2}$ $X X Z$ model with the ring-exchange interaction $K$ was investigated numerically. As for the hard-core-boson model with the nearest-neighbor hopping $…

cond-mat.stat-mech2023★ 4 cited

Transverse-field $X Y$ spin chain with the competing long-range interactions: Multi-criticality around the $X X$ -symmetric point

Yoshihiro Nishiyama

The transverse-field $X Y$ spin chain with competing antiferromagnetic long-range interactions, $J_{r} \propto 1/ r^{α}$ ( $r$ : distance between spins), and the exponent $α$ was investiga…

cond-mat.stat-mech2023

End-point singularity of the $X Y$ -paramagnetic phase boundary for the $(2 + 1)$ D $S = 1$ square-lattice $J_{1}$ - $J_{2}$ $X Y$ model with the single-ion anisotropy

Yoshihiro Nishiyama

The two-dimensional quantum spin- $S = 1$ square-lattice $J_{1}$ - $J_{2}$ $X Y$ model with the single-ion anisotropy $D$ was investigated numerically, placing an emphasis on the end-point s…

Longitudinal-field fidelity susceptibility analysis of the J1​-J2​ transverse-field Ising model around J2​/J1​≈0.5

Critical exponents of fluid-fluid interfacial tensions near a critical endpoint in a nonwetting gap

Two-dimensional transverse-field XY model with the in-plane anisotropy and Dzyaloshinskii-Moriya interaction: Anisotropy-driven transition

XY-VBS phase boundary for the square-lattice J1​-J2​ XXZ model with the ring exchange

Transverse-field XY spin chain with the competing long-range interactions: Multi-criticality around the XX-symmetric point

End-point singularity of the XY-paramagnetic phase boundary for the (2+1)D S=1 square-lattice J1​-J2​ XY model with the single-ion anisotropy

Longitudinal-field fidelity susceptibility analysis of the $J_{1}$ - $J_{2}$ transverse-field Ising model around $J_{2} / J_{1} \approx 0.5$

Two-dimensional transverse-field $X Y$ model with the in-plane anisotropy and Dzyaloshinskii-Moriya interaction: Anisotropy-driven transition

$X Y$ -VBS phase boundary for the square-lattice $J_{1}$ - $J_{2}$ $X X Z$ model with the ring exchange

Transverse-field $X Y$ spin chain with the competing long-range interactions: Multi-criticality around the $X X$ -symmetric point

End-point singularity of the $X Y$ -paramagnetic phase boundary for the $(2 + 1)$ D $S = 1$ square-lattice $J_{1}$ - $J_{2}$ $X Y$ model with the single-ion anisotropy