Renormalisation of the energy-momentum tensor in scalar field theory using the Wilson flow

Francesco Capponi, Antonio Rago, Luigi Del Debbio, Susanne Ehret, Roberto Pellegrini

Research output: Contribution to journalArticlepeer-review

Abstract

A non-perturbative renormalisation prescription for the energy-momentum tensor, based on space-Time symmetries along the Wilson flow, has been proposed recently in the context of 4- dimensional gauge theories. We extend this construction to the case of a scalar field theory, and investigate its numerical feasibility by studying Ward identities in 3-dimensional scalar field theory. After introducing the Wilson flow for the scalar field theory we discuss its renormalisation properties and the determination of the renormalisation constants for the energy-momentum tensor.

Original languageEnglish
Article number306
JournalProceedings of Science
Volume14-18-July-2015
Publication statusPublished - 9 Dec 2015

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