Title
Quasi‐polynomial mixing of critical two‐dimensional random cluster models
Abstract
We study the Glauber dynamics for the random cluster (FK) model on the torus (Z/nZ)2 with parameters (p,q), for q is an element of (1,4] and p the critical point p(c). The dynamics is believed to undergo a critical slowdown, with its continuous-time mixing time transitioning from O(logn) for p not equal p(c) to a power-law in n at p = p(c). This was verified at p not equal p(c) by Blanca and Sinclair, whereas at the critical p = p(c), with the exception of the special integer points q = 2,3,4 (where the model corresponds to the Ising/Potts models) the best-known upper bound on mixing was exponential in n. Here we prove an upper bound of nO(logn) at p = p(c) for all q is an element of (1,4], where a key ingredient is bounding the number of nested long-range crossings at criticality.
Year
DOI
Venue
2020
10.1002/rsa.20868
RANDOM STRUCTURES & ALGORITHMS
Keywords
Field
DocType
critical phenomena,Glauber dynamics,mixing time,random cluster model
Discrete mathematics,Quasi-polynomial,Pure mathematics,Critical phenomena,Mathematics
Journal
Volume
Issue
ISSN
56.0
2.0
1042-9832
Citations 
PageRank 
References 
0
0.34
0
Authors
2
Name
Order
Citations
PageRank
Reza Gheissari100.34
Eyal Lubetzky235528.87