Results 21 to 30 of about 268,972 (205)

Towards Multifractality through an Ernst-Type Potential in Complex Systems Dynamics

open access: yesEntropy, 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

open access: yesQuanta, 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]

open access: yes, 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

Exploring the unification of quantum theory and general relativity with a Bose–Einstein condensate [PDF]

open access: yesNew Journal of Physics, 2018
Despite almost a century’s worth of study, it is still unclear how general relativity (GR) and quantum theory (QT) should be unified into a consistent theory.
R. Howl, R. Penrose, I. Fuentes
semanticscholar   +1 more source

Microscopic Origin of the Entropy of Black Holes in General Relativity [PDF]

open access: yesPhysical Review X, 2022
We construct an infinite family of microstates with geometric interiors for eternal black holes in general relativity with negative cosmological constant in any dimension.
V. Balasubramanian   +3 more
semanticscholar   +1 more source

Quantum complementarity of clocks in the context of general relativity [PDF]

open access: yesClassical and quantum gravity, 2018
Clocks play a special role at the interface of general relativity and quantum mechanics. We analyze a clock-interferometry thought experiment and go on to theoretically derive and experimentally test a complementarity relation for quantum clocks in the ...
Zhifan Zhou   +4 more
semanticscholar   +1 more source

An Improved Framework for Quantum Gravity

open access: yesUniverse, 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

An Elementary Canonical Classical and Quantum Dynamics for General Relativity [PDF]

open access: yesThe European Physical Journal Plus, 2018
A consistent canonical classical and quantum dynamics in the framework of special relativity was formulated by Stueckelberg in 1941, and generalized to many body theory by Horwitz and Piron in 1973 (SHP).
L. Horwitz
semanticscholar   +1 more source

A Postquantum Theory of Classical Gravity?

open access: yesPhysical 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

Canonical structure of general relativity with a limiting curvature and its relation to loop quantum gravity [PDF]

open access: yes, 2017
Chamseddine and Mukhanov recently proposed a modified version of general relativity that implements the idea of a limiting curvature. In the spatially flat, homogeneous, and isotropic sector, their theory turns out to agree with the effective dynamics of
N. Bodendorfer   +2 more
semanticscholar   +1 more source

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