Results 81 to 90 of about 540,486 (189)
Dynamical masses in modified gravity [PDF]
Physical Review D, 2010 18 pages, 16 figures; submitted to PRD; v2: typos corrected, references added, minor additions (Sec. IID)
openaire +3 more sources
On holographic Rényi entropy in some modified theories of gravity
Journal of High Energy Physics, 2018 We perform a detailed analysis of holographic entanglement Rényi entropy in some modified theories of gravity with four dimensional conformal field theory duals.
Anshuman Dey +2 more
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Deformed General Relativity and Quantum Black Holes Interior
Universe, 2020 Effective models of black holes interior have led to several proposals for regular black holes. In the so-called polymer models, based on effective deformations of the phase space of spherically symmetric general relativity in vacuum, one considers a ...
Denis Arruga +2 more
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Neutron stars in a perturbative $f(R)$ gravity model with strong magnetic fields
, 2013 We investigate the effect of a strong magnetic field on the structure of neutron stars in a model with perturbative $f(R)$ gravity. The effect of an interior strong magnetic field of about $10^{17 \sim 18}$ G on the equation of state is derived in the ...
Cheoun, Myung-Ki +6 more
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Strong gravity signatures in the polarization of gravitational waves
, 2019 General Relativity is a hugely successful description of gravitation. However, both theory and observations suggest that General Relativity might have significant classical and quantum corrections in the Strong Gravity regime.
Shankaranarayanan, S.
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Stealth acceleration and modified gravity [PDF]
Journal of Cosmology and Astroparticle Physics, 2007 We show how to construct consistent braneworld models which exhibit late time acceleration. Unlike self-acceleration, which has a de Sitter vacuum state, our models have the standard Minkowski vacuum and accelerate only in the presence of matter, which we dub ``stealth-acceleration''.
Charmousis, Christos +2 more
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Innermost stable circular orbit of Kerr-MOG black hole
European Physical Journal C: Particles and Fields, 2017 We study the innermost stable circular orbit (ISCO) of the metric of the Kerr black hole in modified gravity (Kerr-MOG black hole), which is one of the exact solutions of the field equation of modified gravity in the strong gravity regime.
Hyun-Chul Lee, Yong-Jin Han
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Observational Constraints on Kinetic Gravity Braiding from the Integrated Sachs-Wolfe Effect
, 2012 The cross-correlation between the integrated Sachs-Wolfe (ISW) effect and the large scale structure (LSS) is a powerful tool to constrain dark energy and alternative theories of gravity.
Kazuhiro Yamamoto +3 more
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Cosmological Analysis of Modified Holographic Ricci Dark Energy in Chern-Simons Modified Gravity
Advances in High Energy Physics, 2019 In this paper, we study the cosmological analysis of the modified holographic Ricci dark energy model and reconstruct different scalar field models in the context of Chern-Simons modified gravity.
Sarfraz Ali, M. Jamil Amir
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Modified gravity and the stability of de Sitter space
, 2005 Within the context of modified gravity and dark energy scenarios of the accelerating universe, we study the stability of de Sitter space with respect to inhomogeneous perturbations using a gauge-independent formalism.
V. Faraoni, Valerio Faraoni
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