KPZ reloaded

M Gubinelli, N Perkowski - Communications in Mathematical Physics, 2017 - Springer
We analyze the one-dimensional periodic Kardar–Parisi–Zhang equation in the language of
paracontrolled distributions, giving an alternative viewpoint on the seminal results of Hairer …

Some recent progress in singular stochastic partial differential equations

I Corwin, H Shen - Bulletin of the American Mathematical Society, 2020 - ams.org
Stochastic partial differential equations are ubiquitous in mathematical modeling. Yet, many
such equations are too singular to admit classical treatment. In this article we review some …

The Dynamic Model Comes Down from Infinity

JC Mourrat, H Weber - Communications in Mathematical Physics, 2017 - Springer
We prove an a priori bound for the dynamic Φ^ 4_3 Φ 3 4 model on the torus which is
independent of the initial condition. In particular, this bound rules out the possibility of finite …

A PDE Construction of the Euclidean Quantum Field Theory

M Gubinelli, M Hofmanová - Communications in Mathematical Physics, 2021 - Springer
We present a new construction of the Euclidean Φ^ 4 Φ 4 quantum field theory on R^ 3 R 3
based on PDE arguments. More precisely, we consider an approximation of the stochastic …

Discretisations of rough stochastic PDEs

M Hairer, K Matetski - The Annals of Probability, 2018 - JSTOR
We develop a general framework for spatial discretisations of parabolic stochastic PDEs
whose solutions are provided in the framework of the theory of regularity structures and …

The invariant measure and the flow associated to the -quantum field model

S Albeverio, S Kusuoka - arXiv preprint arXiv:1711.07108, 2017 - arxiv.org
We give a direct construction of invariant measures and global flows for the stochastic
quantization equation to the quantum field theoretical $\Phi^ 4_3 $-model on the $3 …

Stochastic dynamics and the Polchinski equation: an introduction

R Bauerschmidt, T Bodineau, B Dagallier - Probability Surveys, 2024 - projecteuclid.org
This introduction surveys a renormalisation group perspective on log-Sobolev inequalities
and related properties of stochastic dynamics. We also explain the relationship of this …

Log‐Sobolev inequality for the continuum sine‐Gordon model

R Bauerschmidt, T Bodineau - Communications on Pure and …, 2021 - Wiley Online Library
We derive a multiscale generalisation of the Bakry‐Émery criterion for a measure to satisfy a
log‐Sobolev inequality. Our criterion relies on the control of an associated PDE well‐known …

High order paracontrolled calculus

I Bailleul, F Bernicot - Forum of Mathematics, Sigma, 2019 - cambridge.org
We develop in this work a general version of paracontrolled calculus that allows to treat
analytically within this paradigm a whole class of singular partial differential equations with …

Log‐Sobolev inequality for the φ 2 4 φ^4_2 and φ 3 4 φ^4_3 measures

R Bauerschmidt, B Dagallier - Communications on Pure and …, 2024 - Wiley Online Library
Abstract The continuum φ 2 4 φ^4_2 and φ 3 4 φ^4_3 measures are shown to satisfy a log‐
Sobolev inequality uniformly in the lattice regularisation under the optimal assumption that …