TY - JOUR
T1 - Criticality of the (2 + 1)-dimensional S = 1 transverse-field Ising model with extended interactions
T2 - Suppression of corrections to scaling
AU - Nishiyama, Yoshihiro
N1 - Copyright:
Copyright 2010 Elsevier B.V., All rights reserved.
PY - 2010/6/21
Y1 - 2010/6/21
N2 - The criticality of the (2 + 1)-dimensional S = 1 transverse-field Ising model is investigated with the numerical diagonalization method. The scaling behavior is improved by tuning the coupling-constant parameters; the S = 1 spin model allows us to incorporate a variety of interactions such as the single-ion anisotropy and the biquadratic interactions. Simulating the clusters with N = 6, 8, ..., 20 spins, we estimate the critical indices as 1 / ν = 1.586 (6) and η = 0.034 (4).
AB - The criticality of the (2 + 1)-dimensional S = 1 transverse-field Ising model is investigated with the numerical diagonalization method. The scaling behavior is improved by tuning the coupling-constant parameters; the S = 1 spin model allows us to incorporate a variety of interactions such as the single-ion anisotropy and the biquadratic interactions. Simulating the clusters with N = 6, 8, ..., 20 spins, we estimate the critical indices as 1 / ν = 1.586 (6) and η = 0.034 (4).
KW - Critical point phenomena
KW - Lattice theory and statistics
KW - Numerical simulation studies
KW - Quantized spin models
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U2 - 10.1016/j.nuclphysb.2010.03.002
DO - 10.1016/j.nuclphysb.2010.03.002
M3 - Article
AN - SCOPUS:77949288095
SN - 0550-3213
VL - 832
SP - 605
EP - 616
JO - Nuclear Physics B
JF - Nuclear Physics B
IS - 3
ER -