Testing Higher Derivative Gravity through Tunnelling

Higher derivative terms in the gravitational action are natural from the perspective of quantum gravity, but are perceived as leading to a lack of well-posedness. The Gauss–Bonnet term has second-order equations of motion, but does not impact gravitational dynamics in 4D, so one might expect that it...

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Bibliographic Details
Main Authors: Ruth Gregory, Shi-Qian Hu
Format: Article
Language:English
Published: MDPI AG 2024-02-01
Series:Particles
Subjects:
Online Access:https://www.mdpi.com/2571-712X/7/1/8

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