Zobrazeno 1 - 10
of 192
pro vyhledávání: '"Komarova, M. A."'
Publikováno v:
Theor Math Phys 216, 1349-1359 (2023)
By means of the field-theoretic renormalization group, we study the damping of the viscosity coefficient near the superfluid phase transition. We utilize the fact that in the infrared region, the complex model used to describe the phase transition be
Externí odkaz:
http://arxiv.org/abs/2305.10094
Autor:
Komarova, M. V.1 (AUTHOR) m.komarova@spbu.ru, Nalimov, M. Yu.1,2 (AUTHOR)
Publikováno v:
Theoretical & Mathematical Physics. Sep2023, Vol. 216 Issue 3, p1360-1372. 13p.
Publikováno v:
Acta Physica Polonica A 131(4), 651 (2017)
The renormalization group method is applied in order to analyze models E and F of critical dynamics in the presence of velocity fluctuations generated by the stochastic Navier-Stokes equation. Results are given to the one-loop approximation for the a
Externí odkaz:
http://arxiv.org/abs/1609.06078
Autor:
Dančo, M., Hnatich, M., Komarova, M. V., Krasnov, D. M., Lučivjanský, T., Mižišin, L., Nalimov, M. Yu.
Publikováno v:
Theor Math Phys 176(1), (2013) 888
We use the renormalization group method to study model E of critical dynamics in the presence of velocity fluctuations arising in accordance with the stochastic Navier-Stokes equation. Using Martin-Siggia-Rose theorem, we obtain a field- theoretical
Externí odkaz:
http://arxiv.org/abs/1608.07075
Publikováno v:
Phys. Rev. E 93, 012109 (2016)
A quantum field model that incorporates Bose-condensed systems near their phase transition into a superfluid phase and velocity fluctuations is proposed. The stochastic Navier-Stokes equation is used for a generation of the velocity fluctuations. As
Externí odkaz:
http://arxiv.org/abs/1512.05510
Publikováno v:
E3S Web of Conferences, Vol 376, p 01023 (2023)
This paper describes the production of carbon fiber / high-performance polyimide prepregs and the study of prepreg samples quality by scanning electron microscopy, atomic-force electron microscopy and scanning ion-conductance microscopy. The prepreg
Externí odkaz:
https://doaj.org/article/7eb2dbe252ec43dc84eb57def808b1ce
We proposed the method of the optical fiber modal decomposition of the radiation propagating in a multimode optical fiber with a step like refractive index profile. The field distribution at the output end of the fiber was used. The method is based o
Externí odkaz:
http://arxiv.org/abs/1307.3394
Instanton was found for Kraichnan model with 'frozen' velocity field. Large order asymptotic of quantum-field perturbation expansion for renormalization constant $Z_\nu$ was investigated. It was shown that this expansion is convergent one. The radius
Externí odkaz:
http://arxiv.org/abs/0911.4673
Publikováno v:
Nucl.Phys. B714 (2005) 292-306
Instanton analysis is applied to models B--H of critical dynamics. It is shown that the static instanton of the massless $\phi^{4}$ model determines the large-order asymptotes of the perturbation expansion of these near-equilibrium dynamic models lea
Externí odkaz:
http://arxiv.org/abs/hep-th/0412256
Publikováno v:
J. Phys. A: Math. Gen. 39 (2006) 7801\^a?"7813
A simple model of a passive scalar quantity advected by a Gaussian non-solenoidal ("compressible") velocity field is considered. Large order asymptotes of quantum-field expansions are investigated by instanton approach. The existence of finite conver
Externí odkaz:
http://arxiv.org/abs/nlin/0410058