2009/01/01 by Oded Schramm, Scott Sheffield, Scott Sheffield⋆ · 19 citations
Mathematics · #Mathematical Dynamics and Fractals #Geometric Analysis and Curvature Flows #Stochastic processes and statistical mechanics
paper · pdf · doi:10.1007/s11511-009-0034-y
We prove that the chordal contour lines of the discrete Gaussian free field converge to forms of SLE(4). Specifically, there is a constant λ > 0 such that when h is an interpolation of the discrete Gaussian free field on a Jordan domain—with boundary values −λ on one boundary arc and λ on the complementary arc—the zero level line of h joining the endpoints of these arcs converges to SLE(4) as the domain grows larger. If instead the boundary values are −a < 0 on the first arc and b > 0 on the complementary arc, then the convergence is to SLE(4; a/λ - 1, b/λ - 1), a variant of SLE(4).