Research output: Contribution to journal › Article › peer-review
Critical behavior of the weakly disordered Ising model : Six-loop ɛ expansion study. / Компаниец, Михаил Владимирович; Кудлис, Андрей; Соколов, Александр Иванович.
In: Physical Review E, Vol. 103, No. 2, 022134, 02.2021.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Critical behavior of the weakly disordered Ising model
T2 - Six-loop ɛ expansion study
AU - Компаниец, Михаил Владимирович
AU - Кудлис, Андрей
AU - Соколов, Александр Иванович
N1 - Publisher Copyright: © 2021 American Physical Society.
PY - 2021/2
Y1 - 2021/2
N2 - The critical behavior of three-dimensional weakly diluted quenched Ising model is examined on the base of six-loop renormalization group expansions obtained within the minimal subtraction scheme in 4-ɛ space dimensions. For this purpose the φ4 field theory with cubic symmetry was analyzed in the replica limit n→0. Along with renormalization group expansions in terms of renormalized couplings the ɛ expansions of critical exponents are presented. Corresponding numerical estimates for the physical, three-dimensional system are obtained by means of different resummation procedures applied both to the ɛ series and to initial renormalization group expansions. The results given by the latter approach are in a good agreement with their counterparts obtained experimentally and within the Monte Carlo simulations, while resumming of ɛ series themselves turned out to be disappointing.
AB - The critical behavior of three-dimensional weakly diluted quenched Ising model is examined on the base of six-loop renormalization group expansions obtained within the minimal subtraction scheme in 4-ɛ space dimensions. For this purpose the φ4 field theory with cubic symmetry was analyzed in the replica limit n→0. Along with renormalization group expansions in terms of renormalized couplings the ɛ expansions of critical exponents are presented. Corresponding numerical estimates for the physical, three-dimensional system are obtained by means of different resummation procedures applied both to the ɛ series and to initial renormalization group expansions. The results given by the latter approach are in a good agreement with their counterparts obtained experimentally and within the Monte Carlo simulations, while resumming of ɛ series themselves turned out to be disappointing.
UR - http://www.scopus.com/inward/record.url?scp=85102400480&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/b0b7dcee-0867-324a-b157-18544eb34cbb/
U2 - 10.1103/PhysRevE.103.022134
DO - 10.1103/PhysRevE.103.022134
M3 - Article
VL - 103
JO - Physical Review E
JF - Physical Review E
SN - 1539-3755
IS - 2
M1 - 022134
ER -
ID: 74117231