Results 21 to 30 of about 2,694 (262)

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

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

Black Hole Surface Gravity in Doubly Special Relativity Geometries

open access: yesUniverse, 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

A general theory of quantum relativity

open access: yesPhysics Letters B, 2004
13 pages, LaTex; An expanded version, including many clarifications, a new title and abstract as well as new references, to appear in Physics Letters ...
Minic, Djordje, Tze, Chia-Hsiung
openaire   +3 more sources

Renormalizable and Unitary Lorentz Invariant Model of Quantum Gravity

open access: yesUniverse, 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

Superadditivity of Quantum Relative Entropy for General States [PDF]

open access: yesIEEE Transactions on Information Theory, 2018
14 pages. v3: Final version. The main theorem has been improved, adding a fourth step to its proof and also some remarks. v2: There was a flaw in the proof of the previous version. This has been corrected in this version.
Angela Capel   +2 more
openaire   +3 more sources

Quantum dynamics corresponding to the chaotic BKL scenario

open access: yesEuropean 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

On locality in quantum general relativity and quantum gravity [PDF]

open access: yesFoundations of Physics, 1996
Mac-Word file translated to postscript for submission. The author may be reached at: e.prugovecki@utoronto.ca To appear in Found. Phys. vol.
openaire   +2 more sources

Immirzi parameter in quantum general relativity

open access: yesPhysical Review D, 1998
6 pages, no figures, LaTeX ...
Rovelli, Carlo, Thiemann, Thomas
openaire   +2 more sources

CLASSICAL AND QUANTUM GENERAL RELATIVITY: A NEW PARADIGM [PDF]

open access: yesInternational Journal of Modern Physics D, 2005
We argue that recent developments in discretizations of classical and quantum gravity imply a new paradigm for doing research in these areas. The paradigm consists in discretizing the theory in such a way that the resulting discrete theory has no constraints. This solves many of the hard conceptual problems of quantum gravity.
Gambini, Rodolfo, Pullin, Jorge
openaire   +3 more sources

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