Professor Steve Abel s.a.abel@durham.ac.uk
Professor
Nonlocal gravity with worldline inversion symmetry
Abel, Steven; Buoninfante, Luca; Mazumdar, Anupam
Authors
Luca Buoninfante
Anupam Mazumdar
Abstract
We construct a quadratic curvature theory of gravity whose graviton propagator around the Minkowski background respects wordline inversion symmetry, the particle approximation to modular invariance in string theory. This symmetry automatically yields a corresponding gravitational theory that is nonlocal, with the action containing infinite order differential operators. As a consequence, despite being a higher order derivative theory, it is ghost-free and has no degrees of freedom besides the massless spin-2 graviton of Einstein’s general relativity. By working in the linearised regime we show that the point-like singularities that afflict the (local) Einstein’s theory are smeared out.
Citation
Abel, S., Buoninfante, L., & Mazumdar, A. (2020). Nonlocal gravity with worldline inversion symmetry. Journal of High Energy Physics, 2020(1), Article 3. https://doi.org/10.1007/jhep01%282020%29003
Journal Article Type | Article |
---|---|
Acceptance Date | Nov 26, 2019 |
Online Publication Date | Jan 2, 2020 |
Publication Date | Jan 31, 2020 |
Deposit Date | Jan 13, 2020 |
Publicly Available Date | Mar 28, 2024 |
Journal | Journal of High Energy Physics |
Print ISSN | 1126-6708 |
Publisher | Scuola Internazionale Superiore di Studi Avanzati (SISSA) |
Peer Reviewed | Peer Reviewed |
Volume | 2020 |
Issue | 1 |
Article Number | 3 |
DOI | https://doi.org/10.1007/jhep01%282020%29003 |
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http://creativecommons.org/licenses/by/4.0/
Copyright Statement
This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited
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