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New classes of modified teleparallel gravity models [PDF]
Physics Letters B, 2017 New classes of modified teleparallel theories of gravity are introduced. The action of this theory is constructed to be a function of the irreducible parts of torsion f(Tax,Tten,Tvec), where Tax,Tten and Tvec are squares of the axial, tensor and vector ...
Sebastian Bahamonde +2 more
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Some aspects of reconstruction using a scalar field in f(T) gravity [PDF]
European Physical Journal C: Particles and Fields, 2017 General relativity characterizes gravity as a geometric property exhibited on spacetime by massive objects, while teleparallel gravity achieves the same results at the level of equations, by taking a torsional perspective of gravity.
Soumya Chakrabarti +2 more
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Kinetic scalar curvature extended f(R) gravity
Nuclear Physics B, 2018 In this work we study a modified version of vacuum f(R) gravity with a kinetic term which consists of the first derivatives of the Ricci scalar. We develop the general formalism of this kinetic Ricci modified f(R) gravity and we emphasize on cosmological
S.V. Chervon +4 more
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Wormholes in exponential f(R, T) gravity
European Physical Journal C: Particles and Fields, 2019 Alternative gravity is nowadays an extremely important tool to address some persistent observational issues, such as the dark sector of the universe. They can also be applied to stellar astrophysics, leading to outcomes one step ahead of those obtained ...
P. H. R. S. Moraes, P. K. Sahoo
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Integral F(R) gravity and saddle point condition as a remedy for the H0-tension
Nuclear Physics B, 2022 In this work, we shall provide an F(R) gravity theoretical framework for solving the H0-tension. Specifically, by exploiting the F(R) gravity correspondence with a scalar-tensor theory, we shall provide a condition in which when it is satisfied, the H0 ...
S. Nojiri, S.D. Odintsov, V.K. Oikonomou
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Bounce cosmology in $$f({\mathcal {R}})$$ f ( R ) gravity
European Physical Journal C: Particles and Fields, 2021 In this paper, we analyze the modified $$f({\mathcal {R}})$$ f ( R ) gravity models in Friedmann–Lemaître–Robertson–Walker (FLRW) background. The actions of bouncing cosmology are studied under consideration of different viable models in $$f({\mathcal {R}
M. Ilyas, W. U. Rahman
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Legendre scalarization in gravity and cosmology
European Physical Journal C: Particles and Fields, 2023 We propose a new formulation of f(R) gravity, dubbed scalarized f(R) gravity, in which the Legendre transform is included as a dynamical term. This leads to a theory with second-order field equations that describes general relativity with a self ...
Spiros Cotsakis +2 more
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The contribution Hans Adolph Buchdahl f(R) gravity [PDF]
EPJ Web of ConferencesHans Adolph Buchdahl was born in Mainz, Germany, into a Jewish family. He was an Australian physicist, and he was born on 7 July 1919 and died on 7 January 2010. He worked on general relativity, thermodynamics, and optics.
Lazarov Nenad Dj.
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Asymptotically flat vacuum solution in modified theory of Einstein’s gravity
European Physical Journal C: Particles and Fields, 2019 A number of recent observations have suggested that the Einstein’s theory of general relativity may not be the ultimate theory of gravity. The f(R) gravity model with R being the scalar curvature turns out to be one of the best bet to surpass the general
Surajit Kalita, Banibrata Mukhopadhyay
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Generalised nonminimally gravity-matter coupled theory
European Physical Journal C: Particles and Fields, 2018 In this paper, a new generalised gravity-matter coupled theory of gravity is presented. This theory is constructed by assuming an action with an arbitrary function $$f(T,B,L_m)$$ f(T,B,Lm) which depends on the scalar torsion T, the boundary term $$B ...
Sebastian Bahamonde
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