Tricolor percolation and random paths in 3D

We study "tricolor percolation" on the regular tessellation of R[superscript 3] by truncated octahedra, which is the three-dimensional analog of the hexagonal tiling of the plane. We independently assign one of three colors to each cell according to a probability vector p = (p1,p2,p3) and...

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Main Authors: Yadin, Ariel, Sheffield, Scott Roger
Other Authors: Massachusetts Institute of Technology. Department of Mathematics
Format: Article
Language:en_US
Published: Institute of Mathematical Statistics 2014
Online Access:http://hdl.handle.net/1721.1/89532
https://orcid.org/0000-0002-5951-4933
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author Yadin, Ariel
Sheffield, Scott Roger
author2 Massachusetts Institute of Technology. Department of Mathematics
author_facet Massachusetts Institute of Technology. Department of Mathematics
Yadin, Ariel
Sheffield, Scott Roger
author_sort Yadin, Ariel
collection MIT
description We study "tricolor percolation" on the regular tessellation of R[superscript 3] by truncated octahedra, which is the three-dimensional analog of the hexagonal tiling of the plane. We independently assign one of three colors to each cell according to a probability vector p = (p1,p2,p3) and define a "tricolor edge" to be an edge incident to one cell of each color. The tricolor edges form disjoint loops and/or infinite paths. These loops and paths have been studied in the physics literature, but little has been proved mathematically. We show that each p belongs to either the compact phase (in which the length of the tricolor loop passing through a fixed edge is a.s. finite, with exponentially decaying law) or the extended phase (in which the probability that an (n × n × n) box intersects a tricolor path of diameter at least n exceeds a positive constant, independent of n). We show that both phases are non-empty and the extended phase is a closed subset of the probability simplex. We also survey the physics literature and discuss open questions, including the following: Does p = (1/3,1/3,1/3) belong to the extended phase? Is there a.s. an infinite tricolor path for this p? Are there infinitely many? Do they scale to Brownian motion? If p lies on the boundary of the extended phase, do the long paths have a scaling limit analogous to SLE6 in two dimensions? What can be shown for the higher dimensional analogs of this problem?
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spelling mit-1721.1/895322022-09-29T15:33:24Z Tricolor percolation and random paths in 3D Yadin, Ariel Sheffield, Scott Roger Massachusetts Institute of Technology. Department of Mathematics Sheffield, Scott Roger We study "tricolor percolation" on the regular tessellation of R[superscript 3] by truncated octahedra, which is the three-dimensional analog of the hexagonal tiling of the plane. We independently assign one of three colors to each cell according to a probability vector p = (p1,p2,p3) and define a "tricolor edge" to be an edge incident to one cell of each color. The tricolor edges form disjoint loops and/or infinite paths. These loops and paths have been studied in the physics literature, but little has been proved mathematically. We show that each p belongs to either the compact phase (in which the length of the tricolor loop passing through a fixed edge is a.s. finite, with exponentially decaying law) or the extended phase (in which the probability that an (n × n × n) box intersects a tricolor path of diameter at least n exceeds a positive constant, independent of n). We show that both phases are non-empty and the extended phase is a closed subset of the probability simplex. We also survey the physics literature and discuss open questions, including the following: Does p = (1/3,1/3,1/3) belong to the extended phase? Is there a.s. an infinite tricolor path for this p? Are there infinitely many? Do they scale to Brownian motion? If p lies on the boundary of the extended phase, do the long paths have a scaling limit analogous to SLE6 in two dimensions? What can be shown for the higher dimensional analogs of this problem? United States-Israel Binational Science Foundation (Grant 2010357) National Science Foundation (U.S.) (Grant DMS 064558) National Science Foundation (U.S.) (Grant 1209044) 2014-09-15T17:33:43Z 2014-09-15T17:33:43Z 2014-01 2013-12 Article http://purl.org/eprint/type/JournalArticle 1083-6489 http://hdl.handle.net/1721.1/89532 Sheffield, Scott, and Ariel Yadin. “Tricolor Percolation and Random Paths in 3D.” Electronic Journal of Probability 19, no. 0 (January 2, 2014). https://orcid.org/0000-0002-5951-4933 en_US http://dx.doi.org/10.1214/EJP.v19-3073 Electronic Journal of Probability Creative Commons Attribution http://creativecommons.org/licenses/by/3.0/ application/pdf Institute of Mathematical Statistics Institute of Mathematical Statistics
spellingShingle Yadin, Ariel
Sheffield, Scott Roger
Tricolor percolation and random paths in 3D
title Tricolor percolation and random paths in 3D
title_full Tricolor percolation and random paths in 3D
title_fullStr Tricolor percolation and random paths in 3D
title_full_unstemmed Tricolor percolation and random paths in 3D
title_short Tricolor percolation and random paths in 3D
title_sort tricolor percolation and random paths in 3d
url http://hdl.handle.net/1721.1/89532
https://orcid.org/0000-0002-5951-4933
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