paper

Local Discontinuous Galerkin for the Functional Renormalisation Group

arXiv:2207.12266

Abstract

We apply the Local Discontinuous Galerkin discretisation to flow equations of the O(N)-model in the Local Potential Approximation. The improved stability is directly observed by solving the flow equation for various and space-time dimensions . A particular focus of this work is the numerical discretisation and its implementation. The code is publicly available, and is explained in detail here. It is realised as a module within the high performance PDE framework DUNE.

18 pages, 10 figures

Local Discontinuous Galerkin for the Functional Renormalisation Group · wovepaper