Abstract
We study random velocity effects on a two-species reaction–diffusion system consisting of three reaction processes \(A+A\to(\varnothing,A)\), \(A+B\to A\). Using the field theory perturbative renormalization group, we analyze this system in the vicinity of its upper critical dimension \(d_{\mathrm c}=2\). A velocity ensemble is generated by means of stochastic Navier–Stokes equations. In particular, we investigate the effect of thermal fluctuations on the reaction kinetics. The overall analysis is performed in the one-loop approximation and possible macroscopic regimes are identified.
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Funding
The work was supported by VEGA grant No. 1/0535/21 of the Ministry of Education, Science, Research and Sport of the Slovak Republic.
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Prepared from an English manuscript submitted by the author; for the Russian version, see Teoreticheskaya i Matematicheskaya Fizika, 2023, Vol. 217, pp. 19–29 https://doi.org/10.4213/tmf10464.
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Hnatič, M., Kecer, M. & Lučivjanský, T. Two-species reaction–diffusion system in the presence of random velocity fluctuations. Theor Math Phys 217, 1437–1445 (2023). https://doi.org/10.1134/S0040577923100021
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DOI: https://doi.org/10.1134/S0040577923100021