Einstein Gauss-Bonnet theories as ordinary, Wess-Zumino conformal anomaly actions

Recently, the possibility of evading Lovelock's theorem at d=4, via a singular redefinition of the dimensionless coupling of the Gauss-Bonnet term, has been very extensively discussed in the cosmological context. The term is added as a quadratic contribution of the curvature tensor to the Einst...

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Bibliographic Details
Main Authors: Claudio Corianò, Matteo Maria Maglio
Format: Article
Language:English
Published: Elsevier 2022-05-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S037026932200154X