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Vainshtein in the UV and a Wilsonian analysis of derivatively coupled scalars

Padilla Antonio, Antonio; Saltas, Ippocratis

Authors

Ippocratis Saltas



Abstract

In the first part of this paper we critically examine the ultra-violet implications of theories that exhibit Vainshtein screening, taking into account both the standard Wilsonian perspective as well as more exotic possibilities. Aspects of this discussion draw on results from the second part of the paper in which we perform a general study of derivatively coupled scalar theories using non–perturbative exact renormalisation group techniques, which are of interest independently of their application to modified gravity. In this context, we demonstrate the suppression of quantum corrections within the Vainshtein radius and discuss the potential relation with the classicalisation conjecture. We question whether the latter can be considered a realistic candidate for UV completion of large-scale modifications of gravity on account of a dangerously low classicalisation/strong coupling scale.

Citation

Padilla Antonio, A., & Saltas, I. (2018). Vainshtein in the UV and a Wilsonian analysis of derivatively coupled scalars. Journal of Cosmology and Astroparticle Physics, 2018(6), https://doi.org/10.1088/1475-7516/2018/06/039

Journal Article Type Article
Acceptance Date Jun 9, 2018
Publication Date Jun 27, 2018
Deposit Date Jul 9, 2018
Publicly Available Date Mar 28, 2024
Journal Journal of Cosmology and Astroparticle Physics
Electronic ISSN 1475-7516
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 2018
Issue 6
DOI https://doi.org/10.1088/1475-7516/2018/06/039
Public URL https://nottingham-repository.worktribe.com/output/942226
Publisher URL http://iopscience.iop.org/article/10.1088/1475-7516/2018/06/039/meta

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