Complex Langevin boundary terms in lattice models
High Energy Physics - Lattice
2021-12-07 v1
Abstract
In complex Langevin simulations, the insufficient decay of the probability density near infinity leads to boundary terms that spoil the formal argument for correctness. We present a formulation of this term that is cheaply measurable in lattice models, and in principle allows also the direct estimation of the systematic error of the CL method. Results for a toy model, 3d XY model and HDQCD are presented.
Cite
@article{arxiv.2112.02924,
title = {Complex Langevin boundary terms in lattice models},
author = {Michael W. Hansen and Erhard Seiler and Dénes Sexty and Ion-Olimipu Stamatescu},
journal= {arXiv preprint arXiv:2112.02924},
year = {2021}
}
Comments
7 pages, 5 figures, contribution to the 38th International Symposium on Lattice Field Theory, LATTICE2021 26th-30th July, 2021 Zoom/Gather@MIT, USA