28 July 2024 to 3 August 2024
Europe/London timezone

Real time simulations of scalar fields with kernelled complex Langevin equation

30 Jul 2024, 15:05
20m
Talk Applications Outside Particle Physics Applications outside particle physics

Speaker

Denes Sexty (Uni Wuppertal)

Description

Real time evolution of a scalar field theory is investigated. The severe sign problem is circumvented using the Complex Langevin equation. The naive application of the method breaks down for extended real times due to the appearance of boundary terms. We use the kernel freedom of the complex Langevin equation to push the breakdown to larger real-times. We search for the optimal kernel using machine learning methods. Thus, we extend the available range for 1+1d scalar simulations beyond the state of the art simulations.

Primary author

Denes Sexty (Uni Wuppertal)

Co-authors

Alexander Rothkopf (University of Stavanger) Daniel Alvestad (Stavanger University)

Presentation materials