On taking the D → 4 limit of Gauss-Bonnet gravity: theory and solutions
Sign Up to like & getrecommendations! Published in 2020 at "Journal of High Energy Physics"
DOI: 10.1007/jhep07(2020)027
Abstract: We comment on the recently introduced Gauss-Bonnet gravity in four dimensions. We argue that it does not make sense to consider this theory to be defined by a set of D → 4 solutions of… read more here.
Keywords: bonnet gravity; gravity; gauss bonnet; limit gauss ... See more keywords
Instability of collapsing source under expansion-free condition in einstein Gauss–Bonnet gravity
Sign Up to like & getrecommendations! Published in 2019 at "Chinese Journal of Physics"
DOI: 10.1016/j.cjph.2019.07.003
Abstract: Abstract In this work, we have investigated the dynamical instability of spherically symmetric gravitating object under expansion-free condition in Einstein Gauss–Bonnet gravity. In this context, the field equations and dynamical equations have been established in… read more here.
Keywords: instability; bonnet gravity; gauss bonnet; expansion free ... See more keywords
Gravastars in modified Gauss–Bonnet gravity
Sign Up to like & getrecommendations! Published in 2021 at "Chinese Journal of Physics"
DOI: 10.1016/j.cjph.2021.06.010
Abstract: Abstract This paper aims to discuss the viable and analytic solution of the spherically symmetric gravastar model under the influence of modification of Gauss–Bonnet gravity, i.e., f(G) gravity, where G is the Gauss–Bonnet curvature term.… read more here.
Keywords: bonnet gravity; modified gauss; gravity; gauss bonnet ... See more keywords
No static regular black holes in Einstein-complex-scalar-Gauss-Bonnet gravity
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.102.024034
Abstract: In this brief report, we investigate the existence of four-dimensional static spherically symmetric black holes (BHs) in the Einstein-complex-scalar-Gauss-Bonnet gravity with an arbitrary potential V(ϕ) and a coupling f(ϕ) between the scalar field ϕ and… read more here.
Keywords: bonnet gravity; complex scalar; black holes; scalar gauss ... See more keywords
Holographic butterfly velocities in brane geometry and Einstein-Gauss-Bonnet gravity with matters
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.97.066020
Abstract: In the first part of the paper we generalize the butterfly velocity formula to anisotropic spacetime. We apply the formula to evaluate the butterfly velocities in M-branes, D-branes and strings backgrounds. We show that the… read more here.
Keywords: gauss bonnet; bonnet gravity; butterfly velocities; einstein gauss ... See more keywords
Generalised radiating fields in Einstein–Gauss–Bonnet gravity
Sign Up to like & getrecommendations! Published in 2020 at "European Physical Journal C"
DOI: 10.1140/epjc/s10052-020-08538-y
Abstract: A five-dimensional spherically symmetric generalised radiating field is studied in Einstein–Gauss–Bonnet gravity. We assume the matter distribution is an extended Vaidya-like source and the resulting Einstein–Gauss–Bonnet field equations are solved for the matter variables and… read more here.
Keywords: einstein gauss; gauss bonnet; generalised radiating; bonnet gravity ... See more keywords
An exploration of the black hole entropy in Gauss–Bonnet gravity via the Weyl tensor
Sign Up to like & getrecommendations! Published in 2021 at "Modern Physics Letters A"
DOI: 10.1142/s0217732321501935
Abstract: Various proposals for gravitational entropy densities have been constructed from the Weyl tensor. In almost all cases, though, these studies have been restricted to general relativity, and little has been done in modified theories of… read more here.
Keywords: weyl; bonnet gravity; weyl tensor; gauss bonnet ... See more keywords
A connection between linearized Gauss–Bonnet gravity and classical electrodynamics
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Modern Physics D"
DOI: 10.1142/s0218271819500925
Abstract: A connection between linearized Gauss–Bonnet gravity and classical electrodynamics is found by developing a procedure which can be used to derive completely gauge-invariant models. The procedure involves building the most general Lagrangian for a particular… read more here.
Keywords: bonnet gravity; electrodynamics; gauss bonnet; formula see ... See more keywords
On 1 + 3 covariant perturbations of the quasi-Newtonian space-time in modified Gauss-Bonnet gravity
Sign Up to like & getrecommendations! Published in 2023 at "International Journal of Modern Physics D"
DOI: 10.1142/s0218271823500530
Abstract: The consideration of a 1 + 3 covariant approach to cold dark matter universe with no shear cosmological dust model with irrotational flows is developed in the context of f (G) gravity theory in the… read more here.
Keywords: gravity; bonnet gravity; quasi newtonian; gauss bonnet ... See more keywords
Anisotropic Compact Stars in D → 4 Limit of Gauss-Bonnet Gravity
Sign Up to like & getrecommendations! Published in 2022 at "Symmetry"
DOI: 10.3390/sym14030545
Abstract: In the frame of Gauss–Bonnet gravity and in the limit of D→4, based on the fact that spherically symmetric solution derived using any of regularization schemes will be the same form as the original theory,… read more here.
Keywords: bonnet gravity; compact stars; anisotropic compact; gauss bonnet ... See more keywords