Results 101 to 110 of about 51,813 (205)

On the Geometric Meaning of General Relativity and the Foundations of Newtonian Cosmology

AppliedMath
The geometric foundations of General Relativity are revisited here, with particular attention to its gauge invariance, as a key to understanding the true nature of spacetime.
Jaume de Haro, Emilio Elizalde
doaj   +1 more source

A Quantum-Cosmological Equation for the Regularization of Singularities and the Unification of Quantum Mechanics and General Relativity

This paper presents a novel quantum-cosmological equation aimed at addressing the singularity problem in general relativity by introducing quantum corrections. The equation seeks to unify quantum mechanics and general relativity, offering a pathway for the regularization of singularities in black holes and the early universe.
openaire   +5 more sources

Origin of cosmological density perturbations from quantum fluctuations of vacuum in General Relativity

19 pages, 2 figures. A contribution to the book "Open Issues in Gravitation and Cosmology - Original Contributions, Essays and Recollections in Honor of Alexei Starobinsky", to be published by Springer, edited by Andrei Barvinsky and Alexander ...
Lukash, Vladimir N., Mikheeva, Elena V.
openaire   +2 more sources

A strictly local solution to the problem of energy in general relativity

Frontiers in Astronomy and Space Sciences
The problem of energy and its conservation is more than a century old in general relativity (GR) and is considered by many scholars to be, at least, not sufficiently solved.
Werner M. Vieira, Nadja S. Magalhaes
doaj   +1 more source

A Unified Theory Integrating Quantum Mechanics, General Relativity, and Cosmology

A Unified Theory Integrating Quantum Mechanics, General Relativity, and Cosmology This paper presents a novel theoretical framework that unifies quantum mechanics, general relativity, and cosmology under a single governing equation: U=∫ρ(⟨s∣t⟩)Ψ(⟨t1∣t2⟩)E(f,A) dXU = \int \rho(\langle s|t \rangle) \Psi(\langle t_1|t_2 \rangle) E(f, A) \, dXU=∫ρ(⟨s∣t ...
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Energy-Flow Cosmology: A Thermodynamic Bridge Between General Relativity and Quantum Field

This study proposes a thermodynamic framework that unifies General Relativity (GR) and Quantum Field Theory (QFT) through a continuous energy-flow field parameterized by entropy S. The model introduces an entropy-dependent coupling and an emergent light speed, showing that both spacetime geometry and quantum fluctuations arise as limiting cases of the ...
openaire   +2 more sources

Towards inhomogeneous loop quantum cosmology: triangulating Bianchi IX with perturbations

, 2010
This brief article sums up results obtained in arXiv:0911.2653, which develops a constrained SU(2) lattice gauge theory in the "dipole" approximation.
Marciano, Antonino
core   +1 more source

Geometric Manifold (With Proven Math)- A Topological Solution to the Crisis in Cosmology, Unifying General Relativity & Quantum Mechanics

https://doi.org/10.5281/zenodo.19355171
Pivetta, Adrian, Gemini
  +5 more sources

Power-series dynamics equation of fields based on geometric algebra and high-order covariant-derivative schemes

AIP Advances
Based on previous work, we explore in the context of quantum field theory and cosmology a geometric algebra (GA)-based approach to field dynamics through a multi-derivative power-series equation.
R. W. Haase
doaj   +1 more source

A review of basic results on the Bose–Einstein condensate dark matter model

Frontiers in Astronomy and Space Sciences
We review basic results on the Bose–Einstein condensate dark matter (BECDM) model. Self-gravitating BECs experience a collisionless process of gravitational cooling and violent relaxation, leading to BECDM halos with a “core-envelope” structure.
Pierre-Henri Chavanis, Pierre-Henri Chavanis   +1 more
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