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62 766 (0,251s)

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The Newman-Penrose map and the classical double copy

Gauge-gravity duality is arguably our best hope for understanding quantum gravity. Considerable progress has been made in relating scattering amplitudes in certain gravity theories to those in gauge theories

Particles and field physics

  • 2020
  • Jimp
  • Link
Result

Clausius equation for horizons in F(R)-gravity

Covariant Hamiltonian formulation of F(R) gravity is used to find variation of surface Hamiltonian which leads to formulation of temperature and entropy of a horizon. These thermodynamic quantities are then used to establish an analogy betwe...

Astronomy (including astrophysics,space science)

  • 2023
  • Jimp
  • Link
Result

Clausius equation for horizons in F(R)-gravity

Covariant Hamiltonian formulation of F(R) gravity is used to find variation of surface Hamiltonian which leads to formulation of temperature and entropy of a horizon. These thermodynamic quantities are then used to establish an analogy betwe...

Astronomy (including astrophysics,space science)

  • 2024
  • Jimp
  • Link
Result

Quantum phenomenological gravitational dynamics: a general view from thermodynamics of spacetime

approaches to quantum gravity, including loop quantum gravity, string theory, AdS/CFT in thermodynamics of spacetime and introduces low energy quantum gravity modifications to it. Quantum gravity effects ...

Physical sciences

  • 2020
  • Jimp
  • Link
Result

On the Quantum Regularization of Singular Black-Hole Solutions in Covariant Quantum Gravity

regularization of singular black-hole solutions of classical general relativity. The problem is posed in the context of the theory of covariant quantum gravity (CQG-theory), namely the theory in a frame-i...

Astronomy (including astrophysics,space science)

  • 2023
  • Jimp
  • Link
Result

Remarks on doubly special relativity theories and gravity

Modifications of special relativity by the introduction of an invariant energy and/or momentum level (doubly special relativity, DSR) or by an energy-momentum dependence of the Planck constant (generalized uncertainty principle, GUP) are compared wit...

BE - Teoretická fyzika

  • 2008
  • Jx
Result

Statistical Formulation of Background Independence in Manifestly-Covariant Quantum Gravity Theory

issue is addressed in the framework of manifestly-covariant quantum gravity theory characterize the conceptual foundation of any physically-acceptable theory of quantum gravity. It states that the structure of the...

Astronomy (including astrophysics,space science)

  • 2023
  • Jimp
  • Link
Result

Hamilton-Jacobi Wave Theory in Manifestly-Covariant Classical and Quantum Gravity

Classical and Quantum Gravity Theory is investigated. This refers specifically and implications for the manifestly-covariant quantum gravity theory are discussed-Jacobi theory in which the Hamilt...

Astronomy (including astrophysics,space science)

  • 2019
  • Jimp
  • Link
Result

Spectral action approach to higher derivative gravity

We study the spectral action approach to higher derivative gravity. The work focuses on the classical aspects. We derive the complete and simplified form a rather rigid structure of the higher derivative part of the theory....

Particles and field physics

  • 2020
  • Jimp
  • Link
Result

Holography for bulk states in 3D quantum gravity

criterion, for classical Liouville theory on the pseudosphere. We also discuss how some space of (2+1)-dimensional quantum gravity, living on a time slice in the bulk. We focus on pure gravity coupled to pointlike...

Particles and field physics

  • 2023
  • Jimp
  • Link
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