Weak lensing in a plasma medium and gravitational deflection of massive particles using the Gauss-Bonnet theorem. A unified treatment [PDF]
Physical Review D, 2018 We apply the Gauss-Bonnet theorem to the study of light rays in a plasma medium in a static and spherically symmetric gravitational field and also to the study of timelike geodesics followed for test massive particles in a spacetime with the same ...
Gabriel Crisnejo, E. Gallo
semanticscholar +1 more source
AdS/BCFT and Island for curvature-squared gravity
Journal of High Energy Physics, 2022 In this paper, we investigate AdS/BCFT for curvature-squared gravity. To warm up, we start with Gauss-Bonnet gravity. We derive the one point function of stress tensor and show that the central charge related to the norm of displacement operator is ...
Qi-Lin Hu +3 more
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Testing new massive conformal gravity with the light deflection by black hole
Nuclear Physics B, 2023 We study the weak gravitational lensing effect of Non-Bocharova-Bronnikov-Melnikov-Bekenstein (BBMB) black hole in new massive conformal gravity. We analyze the deflection angle of light caused by new massive conformal gravity by using the Gauss-Bonnet ...
Muhammad Yasir +3 more
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Weak gravitational lensing by Bocharova–Bronnikov–Melnikov–Bekenstein black holes using Gauss–Bonnet theorem [PDF]
The European Physical Journal Plus, 2020 In this article, we demonstrate the weak gravitational lensing in the context of Bocharova–Bronnikov–Melnikov–Bekenstein (BBMB) black hole. To this desire, we derive the deflection angle of light in a plasma medium by BBMB black hole using the Gibbons ...
W. Javed +2 more
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On Cherkaev-Lurie-Milton theorem in the plane problems of linear elasticity
Archives of Mechanics, 2022 The paper delivers a full justification of the Cherkaev–Lurie–Milton theorem in application to the elasticity problem of in-plane loaded plates, 2D periodic elastic composites, elasticity of thin plates subjected to transverse loads as well as in-plane ...
T. Lewiński
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Gravitational bending angle of light for finite distance and the Gauss-Bonnet theorem [PDF]
, 2016 We discuss a possible extension of calculations of the bending angle of light in a static, spherically symmetric and asymptotically flat spacetime to a nonasymptotically flat case.
Asahi Ishihara +4 more
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Deflection of light by rotating regular black holes using the Gauss-Bonnet theorem [PDF]
Physical Review D, 2018 In this paper, we study the weak gravitational lensing in the spacetime of rotating regular black hole geometries such as Ayon-Beato-Garc\'ia (ABG), Bardeen, and Hayward black holes.
K. Jusufi +4 more
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Einstein Gauss-Bonnet theories as ordinary, Wess-Zumino conformal anomaly actions
Physics Letters B, 2022 Recently, the possibility of evading Lovelock's theorem at d=4, via a singular redefinition of the dimensionless coupling of the Gauss-Bonnet term, has been very extensively discussed in the cosmological context.
Claudio Corianò, Matteo Maria Maglio
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Hairy black-holes in shift-symmetric theories
Journal of High Energy Physics, 2020 Scalar hair of black holes in theories with a shift symmetry are constrained by the no-hair theorem of Hui and Nicolis, assuming spherical symmetry, time-independence of the scalar field and asymptotic flatness.
Paolo Creminelli +4 more
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A consistent theory of D → 4 Einstein-Gauss-Bonnet gravity
Physics Letters B, 2020 We investigate the D→4 limit of the D-dimensional Einstein-Gauss-Bonnet gravity, where the limit is taken with α˜=(D−4)α kept fixed and α is the original Gauss-Bonnet coupling.
Katsuki Aoki +2 more
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