Zobrazeno 1 - 10
of 84
pro vyhledávání: '"Kompaniets, M. V."'
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
Critical exponent $\eta$ (Fisher exponent) in $O(N)$-symmetric $\varphi^4$-model was calculated using renormalization group approach in the space of fixed dimension $D=2$ up to 6~loops. The calculation of the renormalization constants was performed w
Externí odkaz:
http://arxiv.org/abs/1602.02324