English

Exact Area Law for Planar Loops in Turbulence in Two and Three Dimensions

High Energy Physics - Theory 2019-06-28 v3 Chaotic Dynamics Fluid Dynamics

Abstract

We study properties of the minimal surface in the Area Law Solution \cite{M93}, \cite{M19a}, \cite{M19b}. We find out that Area Law holds exactly for 2D turbulence as well as for arbitrary planar loop in higher dimensions. This relies on our previous result α=12\alpha = \frac{1}{2} in which case the second moment of circulation can be proven to reduce to the area inside the planar loop. In d=3d=3, we demonstrate how the Stokes condition iωi(r)=0\partial_i \omega_i(r)=0 is exactly satisfied for the minimal surface solution in virtue of vanishing mean curvature at the minimal surface. In order to satisfy Loop Equation beyond planar loops, we introduce self-consistent conformal metric on the surface designed to preserve Stokes condition but to compensate the terms in the loop equation. We derive nonlinear integral equation for this conformal metric as a function of a point on a surface.

Keywords

Cite

@article{arxiv.1904.05245,
  title  = {Exact Area Law for Planar Loops in Turbulence in Two and Three Dimensions},
  author = {Alexander Migdal},
  journal= {arXiv preprint arXiv:1904.05245},
  year   = {2019}
}

Comments

9 pages, 0 figures, fixed typos, modified Orientation Symmetry discussion, added comments about the second moment computatiuon vs experiment, removed one equation