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A note on the Noether-Wald and generalized Komar charges
by Tomás Ortín, Matteo Zatti
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Submission summary
| Authors (as registered SciPost users): | Matteo Zatti |
| Submission information | |
|---|---|
| Preprint Link: | https://arxiv.org/abs/2411.10420v2 (pdf) |
| Date accepted: | Dec. 15, 2025 |
| Date submitted: | Sept. 30, 2025, 12:03 p.m. |
| Submitted by: | Matteo Zatti |
| Submitted to: | SciPost Physics Core |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
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| Approach: | Theoretical |
Abstract
We propose a simple algorithm to compute the generalized Komar charge of any exactly gauge- and diffeomorphism-invariant theory.
List of changes
- We extended the discussion between equations (4) and (6) of the V1. Eq. (6) of V1 is labeled as Eq. (9) in V2.
Published as SciPost Phys. Core 8, 094 (2025)
Reports on this Submission
Report
In this paper we find a complete and elegant construction of generalized Komar charges (more precisely, charge density (d-2)-forms) in gauge- and diffeo-invariant theories. Attention has been paid to the subtle difference between the Komar and Noether charges, and the result has been illustrated with a brief derivation of the Komar charge, including both electric and magnetic contributions, in Einstein-Maxwell theory in any dimension. I have checked the latest version (arXiv V2) for correctness and recommend this work for publication.
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