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Tau-functions à la Dubédat and probabilities of cylindrical events for double-dimers and CLE(4).
- Source :
- Journal of the European Mathematical Society (EMS Publishing); 2021, Vol. 23 Issue 8, p2787-2832, 46p
- Publication Year :
- 2021
-
Abstract
- Building upon recent results of Dubedat [7] on the convergence of topological correlators in the double-dimer model considered on Temperleyan approximations Ω<superscript>δ</superscript> to a simply connected domain Ω ⊂ ℂ we prove the convergence of probabilities of cylindrical events for the double-dimer loop ensembles on Ω<superscript>δ</superscript> as δ → 0. More precisely, let λ<subscript>1</subscript>,..., λ<subscript>n</subscript> ∈ Ω and L be a macroscopic lamination on Ω \ {λ<subscript>1</subscript>,..., λ<subscript>n</subscript>}, i.e., a collection of disjoint simple loops surrounding at least two punctures considered up to homotopies. We show that the probabilities P<subscript>L</subscript><superscript>δ</superscript> that one obtains L after withdrawing all loops surrounding no more than one puncture from a double-dimer loop ensemble on Ω<superscript>δ</superscript> converge to a conformally invariant limit P<subscript>L</subscript> as δ → 0, for each L. Though our primary motivation comes from 2D statistical mechanics and probability, the proofs are of a purely analytic nature. The key techniques are the analysis of entire functions on the representation variety Hom(π<subscript>1</subscript>(Ω \ {λ<subscript>1</subscript>,..., λ<subscript>n</subscript>}) → SL<subscript>2</subscript>(ℂ)) and on its (non-smooth) subvariety of locally unipotent representations. In particular, we do not use any RSW-type arguments for double-dimers. The limits P<subscript>L</subscript> of the probabilities P<subscript>L</subscript><superscript>δ</superscript> are defined as coefficients of the isomonodromic tau-function studied in [7] with respect to the Fock-Goncharov lamination basis on the representation variety. The fact that PL coincides with the probability of obtaining L from a sample of the nested CLE(4) in Ω requires a small additional input, namely a mild crossing estimate for this nested conformal loop ensemble. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14359855
- Volume :
- 23
- Issue :
- 8
- Database :
- Complementary Index
- Journal :
- Journal of the European Mathematical Society (EMS Publishing)
- Publication Type :
- Academic Journal
- Accession number :
- 157509538
- Full Text :
- https://doi.org/10.4171/JEMS/1072