The Lefschetz thimble and the sign problem
High Energy Physics - Lattice
2015-12-29 v1
Abstract
In this talk I review the proposal to formulate quantum field theories (QFTs) on a Lefschetz thimble, which was put forward to enable Monte Carlo simulations of lattice QFTs affected by sign problem. First I will review the theoretical justification of the approach, and comment on some open issues. Then, I will review the algorithms that have been proposed and are being tested to represent and simulate a lattice QFT on a Lefschetz thimble. In particular, I will review the lessons from the very first models of QFTs that have been studied with this approach.
Keywords
Cite
@article{arxiv.1512.08039,
title = {The Lefschetz thimble and the sign problem},
author = {Luigi Scorzato},
journal= {arXiv preprint arXiv:1512.08039},
year = {2015}
}
Comments
Proceedings of plenary talk at Lattice 2015 conference