Work

On-shell Lagrangians as total derivatives and the generalized Komar charge

Year: 2025

Type: article

Abstract: A bstract Lagrangians which transform homogeneously under a global transformation of the fields (a global rescaling, for instance) can be written on-shell as a total derivative which has a universal, solution-independent expression, using a functional version of the Euler theorem for homogeneous functions. We study the uniqueness of this expression and how this result can be used in the construction of generalized Komar charges.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep09(2025)068

Authors: José Luis V. Cerdeira, Tomás Ortín

Institutions: Universitat de València, Instituto de Física Corpuscular, Instituto de Física Teórica

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funder: Agencia Estatal de Investigación

Awards: G2659563163, G282847690, G7434936867