Articles with "einstein gauss" as a keyword



Absence of curvature singularities in symmetric perfect fluid spacetimes in Einstein–Gauss–Bonnet Gravity

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Published in 2025 at "General Relativity and Gravitation"

DOI: 10.1007/s10714-025-03473-3

Abstract: In this paper we study the higher dimensional N>4\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\left( N > 4\right) $$\end{document} homogeneous and isotropic perfect fluid spacetimes in Einstein–Gauss–Bonnet (EGB) gravity. We solve the… read more here.

Keywords: fluid spacetimes; gravity; einstein gauss; perfect fluid ... See more keywords

Quasinormal modes of the test fields in the consistent 4D Einstein–Gauss-Bonnet–(anti)de Sitter gravity

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Published in 2021 at "Annals of Physics"

DOI: 10.1016/j.aop.2021.168425

Abstract: Abstract The regularization proposed in Glavan and Lin (2020) led to the black hole solutions which turned out to be the solutions of the consistent well-defined 4-dimensional Einstein-Gauss–Bonnet theory of gravity suggested in Aoki et al.… read more here.

Keywords: anti sitter; einstein gauss; sitter; gauss bonnet ... See more keywords

Tunneling analysis under the influences of Einstein-Gauss–Bonnet black holes gravity theory

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Published in 2022 at "New Astronomy"

DOI: 10.1016/j.newast.2021.101759

Abstract: We consider an equation of motion for Glashow-Weinberg-Salam model and apply the semiclassical Hamilton-Jacobi process and WKB approximation in order to compute the tunneling probability of W-bosons in the background of electromagnetic field to analyze… read more here.

Keywords: gauss bonnet; gravity; quantum gravity; einstein gauss ... See more keywords
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Stars and junction conditions in Einstein–Gauss–Bonnet gravity

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Published in 2023 at "Classical and Quantum Gravity"

DOI: 10.1088/1361-6382/acd29c

Abstract: The junction conditions for a higher dimensional spherically symmetric charged and anisotropic static star are derived in Einstein–Gauss–Bonnet (EGB) gravity with nonvanishing cosmological constant. It is shown that for a timelike boundary hypersurface of zero… read more here.

Keywords: gravity; junction conditions; einstein gauss; gauss bonnet ... See more keywords

Observational constraints on the regularized 4D Einstein-Gauss-Bonnet theory of gravity

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Published in 2020 at "Physical Review D"

DOI: 10.1103/physrevd.102.084005

Abstract: In this paper we study the observational constraints that can be imposed on the coupling parameter, $\hat \alpha$, of the recently proposed 4-dimensional Einstein-Gauss-Bonnet theory of gravity. We consider the field equations that can be… read more here.

Keywords: gauss bonnet; theory; hat alpha; einstein gauss ... See more keywords

Charged quark stars and extreme compact objects in regularized 4D Einstein-Gauss-Bonnet gravity

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Published in 2024 at "Physical Review D"

DOI: 10.1103/physrevd.111.043034

Abstract: Since the derivation of a well-defined $D\rightarrow 4$ limit for 4 dimensional Einstein Gauss-Bonnet (4DEGB) gravity coupled to a scalar field, there has been interest in testing it as an alternative to Einstein's general theory… read more here.

Keywords: extreme compact; gravity; quark stars; einstein gauss ... See more keywords

Neutron stars in 4D Einstein-Gauss-Bonnet gravity

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Published in 2024 at "Physical Review D"

DOI: 10.1103/physrevd.111.064071

Abstract: Since the derivation of a well-defined $D\to4$ limit for 4D Einstein-Gauss-Bonnet (4DEGB) gravity coupled to a scalar field, there has been considerable interest in testing it as an alternative to Einstein's general theory of relativity.… read more here.

Keywords: neutron stars; gravity; mass; einstein gauss ... See more keywords

Quasinormal modes of rapidly rotating Einstein-Gauss-Bonnet-dilaton black holes

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Published in 2024 at "Physical Review D"

DOI: 10.1103/physrevd.111.l021505

Abstract: Quasinormal modes of rapidly rotating black holes are crucial in understanding the ringdown phase after a merger. While for Kerr black holes these modes have been known for a long time, their calculation has remained… read more here.

Keywords: quasinormal modes; modes rapidly; einstein gauss; gauss bonnet ... See more keywords

Holographic butterfly velocities in brane geometry and Einstein-Gauss-Bonnet gravity with matters

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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

Einstein-Gauss-Bonnet Gravity in Four-Dimensional Spacetime.

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Published in 2020 at "Physical review letters"

DOI: 10.1103/physrevlett.124.081301

Abstract: In this Letter we present a general covariant modified theory of gravity in D=4 spacetime dimensions which propagates only the massless graviton and bypasses Lovelock's theorem. The theory we present is formulated in D>4 dimensions… read more here.

Keywords: spacetime; four dimensional; einstein gauss; bonnet ... See more keywords

Generalised radiating fields in Einstein–Gauss–Bonnet gravity

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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