One-loop effective actions and higher spins

Bonora, Loriano and Cvitan, Maro and Dominis Prester, Predrag and Giaccari, Stefano and Lima de Souza, Bruno and Štemberga, Tamara (2016) One-loop effective actions and higher spins. Journal of High Energy Physics, 2016 (12). 84-1-84-68. ISSN 1029-8479

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The idea we advocate in this paper is that the one-loop effective action of a free (massive) field theory coupled to external sources (via conserved currents) contains complete information about the classical dynamics of such sources. We show many explicit examples of this fact for (scalar and fermion) free field theories in various dimensions d = 3, 4, 5, 6 coupled to (bosonic, completely symmetric) sources with a number of spins. In some cases we also provide compact formulas for any dimension. This paper is devoted to two-point correlators, so the one-loop effective action we construct contains only the quadratic terms and the relevant equations of motion for the sources we obtain are the linearized ones.

Item Type: Article
Keywords: higher spin gravity, higher spin symmetry, renormalization group
Date: 16 December 2016
Subjects: NATURAL SCIENCES > Physics
Additional Information: Open Access, © The Authors. Article funded by SCOAP3 and licensed under CC BY 4.0. Received: September 16, 2016. Revised: November 14, 2016. Accepted: December 4, 2016. Published: December 16, 2016.
Divisions: Faculty of Science > Department of Physics
Project code: UIP-2013-11-8946
Publisher: Springer
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 30 Oct 2017 12:13
Last Modified: 30 Oct 2017 12:13

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