Large D membrane for higher derivative gravity and black hole second law
Sign Up to like & getrecommendations! Published in 2020 at "Journal of High Energy Physics"
DOI: 10.1007/jhep02(2020)083
Abstract: Abstract We derive the effective equations of the membranes dual to black holes in a particular theory of higher derivative gravity namely Einstein-Gauss-Bonnet (EGB) gravity at sub-leading order in 1/D upto linear order in the… read more here.
Keywords: second law; membrane; higher derivative; gravity ... See more keywords
New massless and massive infinite derivative gravity in three dimensions
Sign Up to like & getrecommendations! Published in 2020 at "Nuclear Physics B"
DOI: 10.1016/j.nuclphysb.2020.115024
Abstract: In this paper we will consider the most general quadratic curvature action of massless gravity in 3 space time dimensions which is parity invariant and torsion free and contains the same off-shell degrees of freedom… read more here.
Keywords: infinite derivative; massive infinite; new massless; massless massive ... See more keywords
Perturbations in higher derivative gravity beyond maximally symmetric spacetimes
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.100.064022
Abstract: We study (covariant) scalar-vector-tensor (SVT) perturbations of infinite derivative gravity (IDG), at the quadratic level of the action, around conformally-flat, covariantly constant curvature backgrounds which are not maximally symmetric spacetimes (MSS). This extends a previous… read more here.
Keywords: higher derivative; gravity; maximally symmetric; action ... See more keywords
Newtonian Potential and Geodesic Completeness in Infinite Derivative Gravity
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.96.044012
Abstract: Recent study has shown that a nonsingular oscillating potential—a feature of infinite derivative gravity theories—matches current experimental data better than the standard General Relativity potential. In this work, we show that this nonsingular oscillating potential… read more here.
Keywords: derivative gravity; infinite derivative; newtonian potential; geodesic completeness ... See more keywords
Revealing infinite derivative gravity’s true potential: The weak-field limit around de Sitter backgrounds
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.97.064011
Abstract: General Relativity is known to produce singularities in the potential generated by a point source. Our universe can be modelled as a de Sitter (dS) metric and we show that ghost-free Infinite Derivative Gravity (IDG)… read more here.
Keywords: around sitter; derivative gravity; gravity true; infinite derivative ... See more keywords
Graviton multi-point amplitudes for higher-derivative gravity in anti-de Sitter space
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.97.086002
Abstract: We calculate graviton multi-point amplitudes in an anti-de Sitter black brane background for higher-derivative gravity of arbitrary order in numbers of derivatives. The calculations are performed using tensor graviton modes in a particular regime of… read more here.
Keywords: derivative gravity; point amplitudes; point; graviton ... See more keywords
Gravitational radiation in infinite derivative gravity and connections to effective quantum gravity
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.98.044049
Abstract: The Hulse-Taylor binary provides possibly the best test of GR to date. We find the modified quadrupole formula for infinite derivative gravity (IDG). We investigate the backreaction formula for propagation of gravitational waves, found previously… read more here.
Keywords: gravitational radiation; effective quantum; derivative gravity; quantum gravity ... See more keywords
Gravitational waves and degrees of freedom in higher derivative gravity
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.99.064039
Abstract: We study the degrees of freedom of the metric in a general class of higher derivative gravity models, which are interesting in the context of quantum gravity as they are (super)renormalizable. First, we linearize the… read more here.
Keywords: gravitational waves; derivative gravity; waves degrees; degrees freedom ... See more keywords