Research output: Contribution to conference › Paper › peer-review
Critical dynamics of an advected scalar from the functional renormalization group. / Hnatič, Michal; Kalagov, Georgii; Nalimov, Mikhail.
2017. 321-336 Paper presented at 10th International Conference on Chaotic Modeling and Simulation, CHAOS 2017, Barcelona, Spain.Research output: Contribution to conference › Paper › peer-review
}
TY - CONF
T1 - Critical dynamics of an advected scalar from the functional renormalization group.
AU - Hnatič, Michal
AU - Kalagov, Georgii
AU - Nalimov, Mikhail
N1 - Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2017
Y1 - 2017
N2 - We study effects of turbulent motion on the critical behaviour of a non- conserved scalar field using the formalism of the functional renormalization group (FRG). The turbulent advection is simulated by a random Gaussian velocity field with zero mean and correlation function {equation presented} behaviour of the scalar field close to criticality is described by the A model of critical dynamics. Within the local potential approximation to the Wetterich equation we have analysed possible scaling regimes the model reveals and computed corresponding critical ex- ponents. Our outcomes is capable of recovering the one-loop renormalization group functions of the coupling constants.
AB - We study effects of turbulent motion on the critical behaviour of a non- conserved scalar field using the formalism of the functional renormalization group (FRG). The turbulent advection is simulated by a random Gaussian velocity field with zero mean and correlation function {equation presented} behaviour of the scalar field close to criticality is described by the A model of critical dynamics. Within the local potential approximation to the Wetterich equation we have analysed possible scaling regimes the model reveals and computed corresponding critical ex- ponents. Our outcomes is capable of recovering the one-loop renormalization group functions of the coupling constants.
KW - Critical be-haviour
KW - Non-perturbative renormalization
KW - Stochastic turbulence
UR - http://www.scopus.com/inward/record.url?scp=85072568451&partnerID=8YFLogxK
M3 - Paper
AN - SCOPUS:85072568451
SP - 321
EP - 336
T2 - 10th International Conference on Chaotic Modeling and Simulation, CHAOS 2017
Y2 - 30 May 2017 through 2 June 2017
ER -
ID: 76334909