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Published on: December 4, 2017
Two-Dimensional Turbulence with Local Interactions: Statistics of the Condensate
Anton Svirsky1, Corentin Herbert2, Anna Frishman1
1Physics Department, Technion Israel Institute of Technology, 32000 Haifa, Israel.
Abstract:
Two-dimensional turbulence self-organizes through a process of energy accumulation at large scales, forming a coherent flow termed a condensate. We study the condensate in a model with local dynamics, the large-scale quasigeostrophic equation, observed here for the first time. We obtain analytical results for the mean flow and the two-point, second-order correlation functions, and validate them numerically. The condensate state requires partiy+time-reversal symmetry breaking. We demonstrate distinct universal mechanisms for the even and odd correlators under this symmetry. We find that the model locality is imprinted in the small scale dynamics, which the condensate spatially confines.
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