2024-03-29T01:32:19Z
https://tsukuba.repo.nii.ac.jp/oai
oai:tsukuba.repo.nii.ac.jp:00017455
2022-07-19T00:03:00Z
117:799
3:62:5598:84
Critical exponents of a three-dimensional O(4) spin model
金谷, 和至
Kanaya, K.
Kaya, S.
By Monte Carlo simulation we study the critical exponents governing the transition of the three-dimensional classical O(4) Heisenberg model, which is considered to be in the same universality class as finite-temperature QCD with two massless flavors. We use the single cluster algorithm and the histogram reweighting technique to obtain observables at the critical temperature. After estimating an accurate value of the inverse critical temperature Kc=0.9360(1), we make nonperturbative estimates for various critical exponents by a finite-size scaling analysis. We find ν=0.7479(90), β/ν=0.5129(11), and γ/ν=1.9746(38). They are in excellent agreement with those obtained by perturbation theory with errors reduced to about one-half.
journal article
American Physical Society
1995-03
application/pdf
Physical review D
5
51
2404
2410
http://hdl.handle.net/2241/101726
2470-0010
AA00773624
https://tsukuba.repo.nii.ac.jp/record/17455/files/PRD_51-5.pdf
eng
10018712
https://doi.org/10.1103/PhysRevD.51.2404
c1995 The American Physical Society
open access