On the strong coupling of Einsteinian Cubic Gravity and its generalisations
Jose Beltr\'an Jim\'enez, Alejandro Jim\'enez-Cano
TL;DR
This paper investigates the strong coupling problems associated with Einsteinian Cubic Gravity and its generalisations, highlighting fundamental issues in their theoretical formulation.
Contribution
It identifies and discusses the inherent strong coupling issues in Einsteinian Cubic Gravity and its quasi-topological extensions.
Findings
Identification of strong coupling problems in Einsteinian Cubic Gravity
Analysis of implications for theoretical consistency
Discussion of potential resolutions or limitations
Abstract
In this note we discuss the strong coupling issues inherent to the defining requirement for the so-called Einsteinian Cubic Gravity and its quasi-topological generalisations.
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