Control variates for lattice field theory
High Energy Physics - Lattice
2023-07-28 v1
Abstract
In most lattice field theories, correlators are plagued by a signal-to-noise problem of exponential difficulty in the time separation. We propose a method for improving the signal-to-noise ratio, in which control variates are systematically constructed from lattice Schwinger-Dyson relations. The method is demonstrated on various two-dimensional lattices in scalar field theory, and a strategy for scaling to larger systems is explored.
Keywords
Cite
@article{arxiv.2307.14950,
title = {Control variates for lattice field theory},
author = {Tanmoy Bhattacharya and Scott Lawrence and Jun-Sik Yoo},
journal= {arXiv preprint arXiv:2307.14950},
year = {2023}
}
Comments
5 pages, 4 figures