Results 11 to 20 of about 129,163 (322)
Quantum mechanics from general relativity and the quantum Friedmann equation
European Physical Journal C: Particles and FieldsWe demonstrate that the recently introduced linear equation, reformulating the first Friedmann equation, is the first-order WKB expansion of a quantum cosmological equation.
M. Matone, N. Dimakis
doaj +3 more sources
Quantum signatures in nonlinear gravitational waves [PDF]
Quantum, 2022 The effective quantum field theory description of gravity, despite its non-renormalizability, allows for predictions beyond classical general relativity.
Thiago Guerreiro +4 more
doaj +1 more source
Towards Multifractality through an Ernst-Type Potential in Complex Systems Dynamics
Entropy, 2023 Some possible correspondences between the Scale Relativity Theory and the Space–Time Theory can be established. Since both the multifractal Schrödinger equation from the Scale Relativity Theory and the General Relativity equations for a gravitational ...
Vlad Ghizdovat +5 more
doaj +1 more source
"Mysteries" of modern physics and the fundamental constants c, h, and G
Quanta, 2022 We review how the kinematic structures of special relativity and quantum mechanics both stem from the relativity principle, i.e., "no preferred reference frame" (NPRF). Essentially, NPRF applied to the measurement of the speed of light c gives the light
W. M. Stuckey +2 more
doaj +1 more source
Quantum Gravity from General Relativity [PDF]
, 2021 Although general relativity is a predictively successful theory, it treats matter as classical rather than as quantum. For this reason, it will have to be replaced by a more fundamental quantum theory of gravity. Attempts to formulate a quantum theory of gravity suggest that such a theory may have radical consequences for the nature, and indeed the ...
openaire +2 more sources
An Improved Framework for Quantum Gravity
Universe, 2020 General relativity has two fundamental problems that render it unsuitable for tackling the gravitational field’s quantization. The first problem is the lack of a genuine gravitational variable representing gravitation only, inertial forces apart.
José G. Pereira, Diego F. López
doaj +1 more source
A Postquantum Theory of Classical Gravity?
Physical Review X, 2023 The effort to discover a quantum theory of gravity is motivated by the need to reconcile the incompatibility between quantum theory and general relativity.
Jonathan Oppenheim
doaj +1 more source
Black Hole Surface Gravity in Doubly Special Relativity Geometries
Universe, 2022 In a quantum gravity theory, spacetime at mesoscopic scales can acquire a novel structure very different from the classical concept of general relativity.
José Javier Relancio, Stefano Liberati
doaj +1 more source
Renormalizable and Unitary Lorentz Invariant Model of Quantum Gravity
Universe, 2021 We analyze the R+R2 model of quantum gravity where terms quadratic in the curvature tensor are added to the General Relativity action. This model was recently proved to be a self-consistent quantum theory of gravitation, being both renormalizable and ...
Sergey A. Larin
doaj +1 more source
Quantum dynamics corresponding to the chaotic BKL scenario
European Physical Journal C: Particles and Fields, 2023 We quantize the solution to the Belinski– Khalatnikov–Lifshitz (BKL) scenario using the integral quantization method. Quantization smears the gravitational singularity, preventing its localization in the configuration space.
Andrzej Góźdź +2 more
doaj +1 more source