Abstract: Using field-theoretic renormalization group analysis, we study the Kardar–Parisi–Zhang equation of random surface growth with a spatially quenched random noise taking into account turbulent environment described by the Navier–Stokes equation. The latter is taken in the form that allows to model both macroscopic shaking of the fluid and fully turbulent flow. After establishing multiplicative renormalizability of the constructed action functional with additional non-linearity, we perform one-loop calculations (to the leading order in and where is the space dimension) and find three sets of renormalization group equations’ fixed points: Gaussian fixed point (regime of ordinary diffusion), a curve of fixed points (macroscopic shaking) with infrared attractive segment, and a surface of fixed points for a special case that also involved infrared attractive area. We also investigate marginal values of the coupling constants to look for “hidden” fixed points.
Язык оригиналаанглийский
Страницы (с-по)1343-1347
Число страниц5
ЖурналPhysics of Particles and Nuclei
Том56
Номер выпуска6
DOI
СостояниеОпубликовано - 25 окт 2025

ID: 143068809