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8 698 (0,126s) •

Result

Energy conditions of non-singular black hole spacetimes in conformal gravity

Conformal gravity can elegantly solve the problem of spacetime singularities present in Einstein's gravity. For every physical spacetime, there is an infinite family of conformally equivalent singularity-free metri...

Astronomy (including astrophysics,space science)

  • 2017
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  • Jimp
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  • Link
Result

A first-order approach to conformal gravity

and the existence of ‘conformalized’ general relativity and fourth-order Weyl conformal gravity(1, 3) -> SO(1, 1). The action for gravity is polynomial in {Aμ,W} and the field......

Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

  • 2017
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  • Jimp
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  • Link
Result

Conformal traceless decomposition of lagrange multiplier modified Hořava?Lifshitz Gravity

We introduce conformal traceless decomposition in Lagrange Multiplier modified RFDiff invariant Hořava?Lifshitz gravity. We perform Hamiltonian analysis of given action and determine the action for the physical degrees of freedom....

BE - Teoretická fyzika

  • 2015
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  • Jx
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  • Link
Result

Robinson-Trautman spacetimes coupled to conformally invariant electrodynamics in higher dimensions

We summarize recent results on D-dimensional Robinson–Trautman solutions of Einstein’s gravity in the presence of a conformally invariant non-linear electromagnetic field and a cosmological constant. These spacetimes contain static ...

Pure mathematics

  • 2022
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  • D
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  • Link
Result

Hamiltonian analysis of curvature-squared gravity with or without conformal invariance

We analyze gravitational theories with quadratic curvature terms, including the case of conformally invariant Weyl gravity, motivated by the intention to find a renormalizable theory of gravity in the ultraviolet region, ye...

BE - Teoretická fyzika

  • 2014
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  • Jx
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  • Link
Result

Effects of geometric optics in conformal Weyl gravity

We have investigated effect of geometric optics as the rotation of polarization vector of light in spacetime of gravitational compact object in the fourth-order theory of conformal Weyl gravity. The Pineault-Roeder method is applied...

Astronomy (including astrophysics,space science)

  • 2019
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  • Jimp
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  • Link
Result

Multi-centered AdS3 solutions from Virasoro conformal blocks

is solved by a vacuum classical conformal block on the sphere in a particular channel. In this way we construct multi-centered gravity solutions by using conformal blocks anti-de Sitter gravity in the light of the...

Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

  • 2017
    • •
  • Jimp
    • •
  • Link
Result

Newman-Penrose formalism and exact vacuum solutions to conformal Weyl gravity

We study the exterior solution for a static, spherically symmetric source in Weyl conformal gravity in terms of the Newman-Penrose formalism. We first show for the discussion of conformal gravity solutions correspo...

Astronomy (including astrophysics,space science)

  • 2024
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  • Jimp
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  • Link
Result

Hamiltonian analysis of the conformal decomposition of the gravitational field

This short paper is devoted to the Hamiltonian formulation of the conformal decomposition of the gravitational field that was performed in [gr-qc/0501092]. We also analyze the gauge fixed form of the theory when we fix the conformal...

BE - Teoretická fyzika

  • 2012
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  • Jx
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  • Link
Result

Scalar perturbations of nonsingular nonrotating black holes in conformal gravity

We study scalar and electromagnetic perturbations of a family of nonsingular nonrotating black hole spacetimes that are solutions in a large class of conformally invariant theories of gravity. The effective potential for scalar pert...

Astronomy (including astrophysics,space science)

  • 2017
    • •
  • Jimp
    • •
  • Link
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