PoS - Proceedings of Science
Volume 432 - 16th International Symposium on Radiative Corrections: Applications of Quantum Field Theory to Phenomenology (RADCOR2023) - Main session
Lattice Correlation Functions from Differential Equations
F. Gasparotto*, A. Rapakoulias, S. Weinzierl and X. Xu
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Pre-published on: September 25, 2023
Published on: January 22, 2024
We discuss how methods developed in the context of perturbation theory can be applied to the computation of lattice correlation functions, in particular in the non perturbative regime. The techniques we consider are integration-by-parts identities (supplemented with symmetry relations) and the method of differential equations, cast in the framework of twisted co-homology. We report on calculations of correlation functions for a scalar $\lambda \phi^4$ theory and lattices of small size, both in Euclidean and Minkowskian signature.
DOI: https://doi.org/10.22323/1.432.0020
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