Results 31 to 40 of about 254,321 (352)
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
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Canonical structure of general relativity with a limiting curvature and its relation to loop quantum gravity [PDF]
, 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
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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
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Quantum information and general relativity [PDF]
Fortschritte der Physik, 2004 AbstractThe Einstein‐Podolsky‐Rosen paradox (1935) is reexamined in the light of Shannon's information theory (1948). The EPR argument did not take into account that the observers' information was localized, like any other physical object. General relativity introduces new problems: there are horizons which act as on‐way membranes for the propagation ...
openaire +4 more sources
How unimodular gravity theories differ from general relativity at quantum level [PDF]
, 2015 We investigate path integral quantization of two versions of unimodular gravity. First a fully diffeomorphism-invariant theory is analyzed, which does not include a unimodular condition on the metric, while still being equivalent to other unimodular ...
R. Bufalo +3 more
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Non-locality in quantum field theory due to general relativity [PDF]
, 2015 We show that general relativity coupled to a quantum field theory generically leads to non-local effects in the matter sector. These non-local effects can be described by non-local higher dimensional operators which remarkably have an approximate shift ...
X. Calmet, D. Croon, Christopher Fritz
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QSD III : Quantum Constraint Algebra and Physical Scalar Product in Quantum General Relativity [PDF]
, 1997 This paper deals with several technical issues of non-perturbative four-dimensional Lorentzian canonical quantum gravity in the continuum that arose in connection with the recently constructed Wheeler-DeWitt quantum constraint operator.
T. Thiemann
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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
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Algebraic Structures in the Coupling of Gravity to Gauge Theories
, 2020 This article is an extension of the author's second master thesis [1]. It aims to introduce to the theory of perturbatively quantized General Relativity coupled to Spinor Electrodynamics, provide the results thereof and set the notation to serve as a ...
Prinz, David
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On quantum aspects of general theory of relativity and its detectors
AIMS Mathematics, 2020 Starting from limitations of quantum theory and its measurements we have discussed the concept of quantization in general theory of relativity in strong regime as well as quantization of gravity, which leads to gravitons, in weak field limitation.
A. M. Mishra
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