Couplings and quantitative contraction rates for Langevin dynamics

A Eberle, A Guillin, R Zimmer - 2019 - projecteuclid.org
We introduce a new probabilistic approach to quantify convergence to equilibrium for
(kinetic) Langevin processes. In contrast to previous analytic approaches that focus on the …

Reflection couplings and contraction rates for diffusions

A Eberle - Probability theory and related fields, 2016 - Springer
We consider contractivity for diffusion semigroups wrt Kantorovich (L^ 1 L 1 Wasserstein)
distances based on appropriately chosen concave functions. These distances are …

Quantitative Harris-type theorems for diffusions and McKean–Vlasov processes

A Eberle, A Guillin, R Zimmer - Transactions of the American Mathematical …, 2019 - ams.org
We consider ${\mathbb {R}}^ d $-valued diffusion processes of type\begin {align*} dX_t\=\b
(X_t) dt+ dB_t.\end {align*} Assuming a geometric drift condition, we establish contractions of …

Exponential ergodicity for Markov processes with random switching

B Cloez, M Hairer - 2015 - projecteuclid.org
We study a Markov process with two components: the first component evolves according to
one of finitely many underlying Markovian dynamics, with a choice of dynamics that changes …

Nonasymptotic bounds for sampling algorithms without log-concavity

MB Majka, A Mijatović, Ł Szpruch - 2020 - projecteuclid.org
Discrete time analogues of ergodic stochastic differential equations (SDEs) are one of the
most popular and flexible tools for sampling high-dimensional probability measures. Non …

Convergence to equilibrium in Wasserstein distance for Fokker–Planck equations

F Bolley, I Gentil, A Guillin - Journal of Functional Analysis, 2012 - Elsevier
We describe conditions on non-gradient drift diffusion Fokker–Planck equations for its
solutions to converge to equilibrium with a uniform exponential rate in Wasserstein distance …

An elementary approach to uniform in time propagation of chaos

A Durmus, A Eberle, A Guillin, R Zimmer - Proceedings of the American …, 2020 - ams.org
Based on a coupling approach, we prove uniform in time propagation of chaos for weakly
interacting mean-field particle systems with possibly non-convex confinement and …

An entropic approach for Hamiltonian Monte Carlo: the idealized case

P Monmarché - The Annals of Applied Probability, 2024 - projecteuclid.org
Quantitative long-time entropic convergence and short-time regularization are established
for an idealized Hamiltonian Monte Carlo chain which alternatively follows an Hamiltonian …

Phase transitions, logarithmic Sobolev inequalities, and uniform-in-time propagation of chaos for weakly interacting diffusions

MG Delgadino, RS Gvalani, GA Pavliotis… - … in Mathematical Physics, 2023 - Springer
In this article, we study the mean field limit of weakly interacting diffusions for confining and
interaction potentials that are not necessarily convex. We explore the relationship between …

Stochastic gradient and Langevin processes

X Cheng, D Yin, P Bartlett… - … Conference on Machine …, 2020 - proceedings.mlr.press
We prove quantitative convergence rates at which discrete Langevin-like processes
converge to the invariant distribution of a related stochastic differential equation. We study …