Classical duals, Legendre transforms and the Vainshtein mechanism

Padilla, Antonio and Saffin, Paul M. (2012) Classical duals, Legendre transforms and the Vainshtein mechanism. Journal of High Energy Physics, 2012 (7). 122/1-122/17. ISSN 1029-8479

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We show how to generalize the classical duals found by Gabadadze {et al} to a very large class of self-interacting theories. This enables one to adopt a perturbative description beyond the scale at which classical perturbation theory breaks down in the original theory. This is particularly relevant if we want to test modified gravity scenarios that exhibit Vainshtein screening on solar system scales. We recognise the duals as being related to the Legendre transform of the original Lagrangian, and present a practical method for finding the dual in general; our methods can also be applied to self-interacting theories with a hierarchy of strong coupling scales, and with multiple fields. We find the classical dual of the full quintic galileon theory as an example.

Item Type: Article
Keywords: Classical theories of gravity, Supersymmetry and duality
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Physics and Astronomy
Identification Number:
Depositing User: Saffin, Dr Paul
Date Deposited: 24 Apr 2017 12:27
Last Modified: 04 May 2020 16:33

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