1–5 Dec 2025
ECT*
Europe/Rome timezone

A scalable flow-based approach to mitigate topological freezing

5 Dec 2025, 09:40
40m
Aula Renzo Leonardi (ECT*)

Aula Renzo Leonardi

ECT*

Strada delle Tabarelle 286, I-38123 Villazzano (Trento)

Speaker

Elia Cellini (University of Edinburgh)

Description

In recent years, flow-based samplers have emerged as a promising alternative to traditional sampling methods in lattice gauge theory. In this talk, we will introduce a class of flow-based samplers known as Stochastic Normalizing Flows (SNFs), which combine neural networks with non-equilibrium Monte Carlo algorithms. We will show that SNFs exhibit excellent scaling with the volume in lattice $\textrm{SU}(3)$ gauge theory. Then, we will present an application to $\textrm{SU}(3)$ gauge theory with open boundary conditions, demonstrating how this approach represents an efficient strategy for the sampling of topological observables at fine lattice spacings.

Author

Elia Cellini (University of Edinburgh)

Co-authors

Claudio Bonanno (IFT UAM/CSIC Madrid) Andrea Bulgarelli (University of Bonn) Alessandro Nada (University of Turin and INFN Turin) Dario Panfalone (University of Turin and INFN Turin) Davide Vadacchino (University of Plymouth) Lorenzo Verzichelli (University of Turin and INFN Turin)

Presentation materials

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