Algorithmic pirogov-sinai theory

T Helmuth, W Perkins, G Regts - Proceedings of the 51st Annual ACM …, 2019 - dl.acm.org
We develop an efficient algorithmic approach for approximate counting and sampling in the
low-temperature regime of a broad class of statistical physics models on finite subsets of the …

Random cluster dynamics for the Ising model is rapidly mixing

H Guo, M Jerrum - Proceedings of the Twenty-Eighth Annual ACM-SIAM …, 2017 - SIAM
We show for the first time that the mixing time of Glauber (single edge update) dynamics for
the random cluster model at q= 2 is bounded by a polynomial in the size of the underlying …

Efficient sampling and counting algorithms for the Potts model on ℤᵈ at all temperatures

C Borgs, J Chayes, T Helmuth, W Perkins… - Proceedings of the 52nd …, 2020 - dl.acm.org
For d≥ 2 and all q≥ q 0 (d) we give an efficient algorithm to approximately sample from the
q-state ferromagnetic Potts and random cluster models on the torus (ℤ/n ℤ) d for any inverse …

Entropy decay in the Swendsen–Wang dynamics on ℤd

A Blanca, P Caputo, D Parisi, A Sinclair… - Proceedings of the 53rd …, 2021 - dl.acm.org
We study the mixing time of the Swendsen-Wang dynamics for the ferromagnetic Ising and
Potts models on the integer lattice ℤ d. This dynamics is a widely used Markov chain that …

Sampling from the Potts model at low temperatures via Swendsen–Wang dynamics

A Blanca, R Gheissari - 2023 IEEE 64th Annual Symposium on …, 2023 - ieeexplore.ieee.org
Sampling from the q-state ferromagnetic Potts model is a fundamental question in statistical
physics, probability theory, and theoretical computer science. On general graphs, this …

Spatial mixing and the random‐cluster dynamics on lattices

R Gheissari, A Sinclair - Random Structures & Algorithms, 2024 - Wiley Online Library
An important paradigm in the understanding of mixing times of Glauber dynamics for spin
systems is the correspondence between spatial mixing properties of the models and bounds …

Mixing times of critical two‐dimensional Potts models

R Gheissari, E Lubetzky - Communications on Pure and …, 2018 - Wiley Online Library
We study dynamical aspects of the q‐state Potts model on an n× n box at its critical βc (q).
Heat‐bath Glauber dynamics and cluster dynamics such as Swendsen–Wang (that …

Low-temperature Ising dynamics with random initializations

R Gheissari, A Sinclair - Proceedings of the 54th Annual ACM SIGACT …, 2022 - dl.acm.org
Glauber dynamics on spin systems are well known to suffer exponential slowdowns at low
temperatures due to the emergence of multiple metastable phases, separated by narrow …

Random-cluster dynamics on random regular graphs in tree uniqueness

A Blanca, R Gheissari - Communications in Mathematical Physics, 2021 - Springer
We establish rapid mixing of the random-cluster Glauber dynamics on random\varDelta Δ-
regular graphs for all q ≥ 1 q≥ 1 and p< p_u (q,\varDelta) p< pu (q, Δ), where the threshold …

Renormalization of crossing probabilities in the planar random-cluster model

H Duminil-Copin, V Tassion - arxiv preprint arxiv:1901.08294, 2019 - arxiv.org
The study of crossing probabilities-ie probabilities of existence of paths crossing rectangles-
has been at the heart of the theory of two-dimensional percolation since its beginning. They …