0000000000610391

AUTHOR

Julio Arrechea

showing 2 related works from this author

Inconsistencies in four-dimensional Einstein-Gauss-Bonnet gravity

2021

We attempt to clarify several aspects concerning the recently presented four-dimensional Einstein-Gauss-Bonnet gravity. We argue that the limiting procedure outlined in [Phys. Rev. Lett. 124, 081301 (2020)] generally involves ill-defined terms in the four dimensional field equations. Potential ways to circumvent this issue are discussed, alongside remarks regarding specific solutions of the theory. We prove that, although linear perturbations are well behaved around maximally symmetric backgrounds, the equations for second-order perturbations are ill-defined even around a Minkowskian background. Additionally, we perform a detailed analysis of the spherically symmetric solutions and find tha…

PhysicsNuclear and High Energy PhysicsGovernment010308 nuclear & particles physicsCenter of excellenceFOS: Physical sciencesAstronomy and AstrophysicsGeneral Relativity and Quantum Cosmology (gr-qc)01 natural sciencesGeneral Relativity and Quantum CosmologyManagementsymbols.namesakeState agencyWork (electrical)0103 physical sciencessymbolsChristian ministryEinstein010306 general physicsInstrumentation
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Comment on “Einstein-Gauss-Bonnet Gravity in Four-Dimensional Spacetime”

2020

We argue that several statements in Phys. Rev. Lett. 124, 081301 (2020) are not correct.

Physicssymbols.namesakeSpacetimeGauss–Bonnet gravitysymbolsFOS: Physical sciencesGeneral Physics and AstronomyGeneral Relativity and Quantum Cosmology (gr-qc)EinsteinGeneral Relativity and Quantum CosmologyMathematical physicsPhysical Review Letters
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