Research Output per year

## Fingerprint Dive into the research topics where Yoshihiro Nishiyama is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

Ising model
Physics & Astronomy

Ising Model
Mathematics

scaling
Physics & Astronomy

Criticality
Mathematics

Renormalization Group
Mathematics

strings
Physics & Astronomy

ground state
Physics & Astronomy

Matrix Groups
Mathematics

## Research Output 1994 2019

- 632 Citations
- 13 h-Index
- 71 Article

## Criticality of the Higgs mass for the long-range quantum XY chain: Amplitude ratio between the Higgs and paramagnetic gaps

Nishiyama, Y., Aug 1 2019, In : Physica A: Statistical Mechanics and its Applications. 527, 121395.Research output: Contribution to journal › Article

Criticality

Higgs

Renormalization Group

Spin Chains

Diagonalization

## Criticality of the low-frequency conductivity for the bilayer quantum Heisenberg model

Nishiyama, Y., Apr 1 2018, In : European Physical Journal B. 91, 4, 69.Research output: Contribution to journal › Article

Bosons

Vortex flow

Capacitors

low frequencies

scaling

## Criticality of the magnon-bound-state hierarchy for the quantum Ising chain with the long-range interactions

Nishiyama, Y., Nov 1 2018, In : European Physical Journal B. 91, 11, 280.Research output: Contribution to journal › Article

hierarchies

renormalization group methods

interactions

critical point

energy spectra

1
Citation
(Scopus)

## Duality-mediated critical amplitude ratios for the (2 + 1)-dimensional S = 1XY model

Nishiyama, Y., Sep 1 2017, In : European Physical Journal B. 90, 9, 173.Research output: Contribution to journal › Article

Vortex flow

Stiffness

Bosons

stiffness

vortices

## Hierarchy of the low-lying excitations for the (2 + 1)-dimensional q = 3 Potts model in the ordered phase

Nishiyama, Y., Mar 1 2017, In : Nuclear Physics B. 916, p. 28-36 9 p.Research output: Contribution to journal › Article

hierarchies

elementary excitations

transition points

magnons

excitation