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861
LRS Bianchi-I Transit Cosmological Models in f(R,T) Gravity
Published 2023-02-01“…A locally rotationally symmetric Bianchi-I model is explored both in general relativity and in f(R,T) gravity, where R is the Ricci scalar and T is the trace of the energy-momentum tensor. …”
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862
Quantum dynamics corresponding to the chaotic BKL scenario
Published 2023-02-01“…Additionally, our results suggest that the generic singularity of general relativity can be avoided at a quantum level, giving support to the expectation that quantum gravity has a good chance of being a regular theory.…”
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863
Why we need to quantise everything, including gravity
Published 2017-07-01“…Why we need to quantise everything, including gravity Quantum gravity—the theory that will merge quantum theory and general relativity—is yet to be found. Some physicist even claim that it is not needed after all: quantum theory and general relativity can coexist in their respective domains. …”
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864
Einstein–Maxwell-axion theory: dyon solution with regular electric field
Published 2017-08-01Get full text
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865
Motion and collision of particles near DST black holes
Published 2019-06-01“…New kinds of orbits are allowed for small deviations of General Relativity, but the behavior of the collision is similar to the one observed for General Relativity. …”
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866
Generalization of Einstein’s gravitational field equations
Published 2017-12-01“…Abstract The Riemann tensor is the cornerstone of general relativity, but as is well known it does not appear explicitly in Einstein’s equation of gravitation. …”
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867
Gravitational Lensing for A Spherically Symmetric Regular Charged Black Hole in Weak Field Limit
Published 2024-08-01“…Gravitational lensing is an integral part of the study of general relativity, as it is one of the direct consequences of general relativity. …”
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868
Relations between Newtonian and Relativistic Cosmology
Published 2024-06-01“…In our concluding endeavor, we embark on the task of harmonizing the classical equations—namely, the conservation, Euler, and Poisson equations—with the principles of General Relativity. This undertaking seeks to extend these foundational equations to encompass the gravitational effects delineated by General Relativity, thus providing a comprehensive framework for understanding the behavior of matter and spacetime in the cosmic context.…”
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869
Quantum fields in teleparallel gravity: renormalization at one-loop
Published 2022-03-01“…Abstract We consider the quantization of matter fields in a background described by the teleparallel equivalent to general relativity. The presence of local Lorentz and gauge symmetries gives rise to different coupling prescriptions, which we analyse separately. …”
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870
Stringy Gravity: Solving the Dark Problems at ‘short’ distance
Published 2018-01-01“…Dictated by Symmetry Principle, string theory predicts not General Relativity but its own gravity which assumes the entire closed string massless sector to be geometric and thus gravitational. …”
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871
Integrability in gravity from Chern-Simons theory
Published 2024-10-01“…We show how the stationary, axisymmetric sector of General Relativity can be described by the boundary dynamics of a four-dimensional Chern-Simons theory. …”
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872
Double copy of spontaneously broken Abelian gauge theory
Published 2022-08-01“…Similarity in the structure of scattering amplitudes in Yang-Mills theories and General Relativity led to the idea that graviton could be described as the double copy of a vector gauge field. …”
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873
Conditions for the absence of infrared sensitivity in cosmological probes in any gravity theories
Published 2023-11-01“…Here we derive the most general conditions for the absence of infrared sensitivity in the cosmological probes without committing to general relativity. We discuss the implications of our results for gravity theories beyond general relativity.…”
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874
An Improved Framework for Quantum Gravity
Published 2020-12-01“…General relativity has two fundamental problems that render it unsuitable for tackling the gravitational field’s quantization. …”
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875
Superradiance and quasinormal modes of the gravitational perturbation around rotating hairy black hole
Published 2023-06-01“…The No Hair theorem in classical general relativity predicts that rotating black holes are specified by the Kerr metric, which is uniquely identified by the mass and spin. …”
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876
New massless and massive infinite derivative gravity in three dimensions
Published 2020-07-01“…The action is parity invariant and torsion-free and contains the same off-shell degrees of freedom as the Einstein-Hilbert action in general relativity. In the ultraviolet, with an appropriate choice of the propagator given by the exponential of an entire function, the point-like curvature singularity can be smoothened to a Gaussian distribution, while in the infrared the theory reduces to general relativity. …”
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877
Nonlocal extension of causal thermodynamics of the isotropic cosmic fluid
Published 2022-03-01Get full text
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878
Modified Gravity and Cosmology
Published 2011“…We also review attempts to construct a Parameterised Post-Friedmannian formalism, that can be used to constrain deviations from General Relativity in cosmology, and that is suitable for comparison with data on the largest scales. …”
Journal article -
879
An improved test of the general relativistic effect of frame-dragging using the LARES and LAGEOS satellites
Published 2019-10-01“…Therefore, our measurement confirms the prediction of General Relativity for frame-dragging with a few percent uncertainty.…”
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880
Granice fizyki w kosmologii
Published 2015-12-01“…Cosmology returned to physics as its important branch due to the advent of general relativity theory and the discovery of the cosmic microwave background radiation. …”
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