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Multiple-SLE connectivity weights for rectangles, hexagons, and octagons

2015/05/28 by Steven M. Flores, Flores, Steven M., Jacob J H Simmons +4
Mathematics · Physics and Astronomy · #FOS: Physical sciences #Mathematical Physics (math-ph) #Random Matrices and Applications #Statistical Mechanics (cond-mat.stat-mech) #Stochastic processes and statistical mechanics #Theoretical and Computational Physics #cond-mat.stat-mech #math-ph #math.MP

paper · pdf · doi:10.48550/arxiv.1505.07756

openalex publication_date 2015/05/28 · arxiv created 2021/12/24 · arxiv updated 2021/12/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

In a previous article, we define "connectivity weights" to be functions with these two properties: 1) They solve the three conformal Ward identities of conformal field theory (CFT) and a system of 2N null-state differential equations governing a CFT 2N-point function of ϕ1,2 or ϕ2,1 primary Kac operators. 2) They satisfy a certain "duality" condition. In that same article, we argue that these functions are in fact pure partition functions for a multiple-SLEκ process with 2N curves, and we show how to find explicit formulas for them in terms of Coulomb gas contour integrals. However, this method gives very complicated formulas where simpler versions may be available, and it is not applicable for certain values of κ∈(0,8) corresponding to well-known critical lattice models in statistical mechanics. In this article, we determine expressions for all connectivity weights for N∈\1,2,3,4\ (those with N∈\3,4\ are new) and for so-called "rainbow connectivity weights" for all N∈ℤ++1. We verify these formulas by explicitly showing that they satisfy the formal definition of a connectivity weight. In appendix B, we investigate logarithmic singularities of some of these expressions, appearing for certain values of κ predicted by logarithmic CFT.

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