Zobrazeno 1 - 10
of 207
pro vyhledávání: '"Kompaniets, M"'
Autor:
Adzhemyan, L. Ts., Evdokimov, D. A., Hnatič, M., Ivanova, E. V., Kompaniets, M. V., Kudlis, A., Zakharov, D. V.
We have calculated the five-loop RG expansions of the $n$-component A model of critical dynamics in dimensions $d=4-\varepsilon$ within the Minimal Subtraction scheme. This is made possible by using the advanced diagram reduction method and the Secto
Externí odkaz:
http://arxiv.org/abs/2201.12640
Autor:
Adzhemyan, L. Ts., Evdokimov, D. A., Hnatič, M., Ivanova, E. V., Kompaniets, M. V., Kudlis, A., Zakharov, D. V.
We calculate the dynamic critical exponent $z$ for 2d and 3d Ising universality classes by means of minimally subtracted five-loop $\varepsilon$ expansion obtained for the one-component model A. This breakthrough turns out to be possible through the
Externí odkaz:
http://arxiv.org/abs/2111.04719
We analyze the Landau-Wilson field theory with $\text{U}(n)\times\text{U}(m)$ symmetry which describes the finite-temperature phase transition in QCD in the limit of vanishing quark masses with $n=m=N_f$ flavors and unbroken anomaly at the critical t
Externí odkaz:
http://arxiv.org/abs/2104.12195
Publikováno v:
Phys. Rev. D 103, 116024 (2021)
We apply the method of graphical functions that was recently extended to six dimensions for scalar theories, to $\phi^3$ theory and compute the $\beta$ function, the wave function anomalous dimension as well as the mass anomalous dimension in the $\o
Externí odkaz:
http://arxiv.org/abs/2103.16224
Publikováno v:
Phys. Rev. E 103, 022134 (2021)
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 $4-\epsilon$ space dimensions. For this purpose the
Externí odkaz:
http://arxiv.org/abs/2011.10782
The Landau-Wilson field theory with $O(n)\times O(m)$ symmetry which describes the critical thermodynamics of frustrated spin systems with noncollinear and noncoplanar ordering is analyzed in $4 - \varepsilon$ dimensions within the minimal subtractio
Externí odkaz:
http://arxiv.org/abs/1911.01091
Publikováno v:
Nucl. Phys. B 940 (2019) 332-350
The six-loop expansions of the renormalization-group functions of $\varphi^4$ $n$-vector model with cubic anisotropy are calculated within the minimal subtraction (MS) scheme in $4 - \varepsilon$ dimensions. The $\varepsilon$ expansions for the cubic
Externí odkaz:
http://arxiv.org/abs/1901.02754
Within the framework of the renormalization group approach to the models of critical dynamics, we propose a method for a considerable reduction of the number of integrals needed to calculate the critical exponents. With this method we perform a calcu
Externí odkaz:
http://arxiv.org/abs/1712.05917
Publikováno v:
EPJ Web of Conferences 125, 05021 (2016)
The critical behavior of $U(n)$-$\chi^{4}$-model with antisymmetric tensor order parameter at charged regime is studied by means of the field theoretic renormalization group at the leading order of $\varepsilon$-expansion (one-loop approximation). It
Externí odkaz:
http://arxiv.org/abs/1710.08533
Autor:
Kompaniets, M.
In this paper we discuss the method of the resummation of the asymptotic series suggested by Kazakov et al. (1978) and predictions of the higher order terms based on this approach. Application of this method to $\varphi^4$ model is discussed.
Co
Co
Externí odkaz:
http://arxiv.org/abs/1604.04108