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THERMODYNAMICS IN MODIFIED GRAVITY THEORIES [PDF]
International Journal of Modern Physics D, 2011 We demonstrate that there exists an equilibrium description of thermodynamics on the apparent horizon in the expanding cosmological background for a wide class of modified gravity theories with the Lagrangian density f(R,ϕ,X), where R is the Ricci scalar and X is the kinetic energy of a scalar field ϕ.
Bamba, Kazuharu +2 more
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Modified Theories of Gravity and Cosmological Applications [PDF]
, 2023 This reprint focuses on recent aspects of gravitational theory and cosmology. It contains subjects of particular interest for modified gravity theories and applications to cosmology, special attention is given to Einstein–Gauss–Bonnet, f(R)-gravity ...
core +2 more sources
A Modified Gravity Theory: Null Aether* [PDF]
Communications in Theoretical Physics, 2019 Abstract General quantum gravity arguments predict that Lorentz symmetry might not hold exactly in nature. This has motivated much interest in Lorentz breaking gravity theories recently. Among such models are vector-tensor theories with preferred direction established at every point of spacetime by a fixed-norm ...
Gurses, Metin, Senturk, Cetin
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Phenomenological Aspects of Quantum Gravity and Modified Theories of Gravity [PDF]
Advances in High Energy Physics, 2017 Ahmed Farag Ali +3 more
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Accelerating universe in modified theories of gravity [PDF]
Physical Review D, 2009 23 pages, 11 figs.
Paul, B. C., Debnath, P. S., Ghose, S.
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A New Approach to Modifying Theories of Gravity [PDF]
Foundations of Physics, 2013 9 pages, conservation equation discussion revised, Kasner type solutions ...
Böhmer, Christian G., Tamanini, Nicola
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Modified theories of gravity: Why, how and what?
General Relativity and Gravitation, 2022 44 pages, 4 figures; Review article accepted in the special issue of General Relativity and Gravitation, dedicated to the memory of Professor Thanu ...
S. Shankaranarayanan, Joseph P. Johnson
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PhD thesis : Compact objects in modified theories of gravity [PDF]
, 2022 The formulation of General Relativity by Albert Einstein in 1915 revolutionised our understanding of the gravitational interaction. However, despite its tremendous successes, this theory struggle to explain certain important phenomena such as the ...
Ducobu, Ludovic
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3D weak lensing: Modified theories of gravity [PDF]
Physical Review D, 2016 Weak lensing (WL) promises to be a particularly sensitive probe of both the growth of large scale structure (LSS) as well as the fundamental relation between matter density perturbations and metric perturbations, thus providing a powerful tool with which we may constrain modified theories of gravity (MG) on cosmological scales.
Geraint Pratten +3 more
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Cosmological behavior of Bekenstein’s modified theory of gravity [PDF]
Physical Review D, 2007 We study the background cosmology governed by the Tensor-Vector-Scalar theory of gravity proposed by Bekenstein. We consider a broad family of potentials that lead to modified gravity and calculate the evolution of the field variables both numerically and analytically.
Bourliot, F +3 more
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