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

Padilla Antonio, Antonio; Saltas, Ippocratis

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: Jun 28, 2019
• 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
• Contract Date: Jul 9, 2018