Results 31 to 40 of about 268,972 (205)
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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Unimodular gravity vs general relativity: a status report [PDF]
Classical and quantum gravity, 2022 Unimodular gravity (UG) is an alternative to general relativity (GR) which, however, is so closely related to the latter that one can wonder to what extent they are different.
R. Carballo-Rubio +2 more
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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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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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Have we lost spacetime on the way? Narrowing the gap between general relativity and quantum gravity
Studies in history and philosophy of modern physics, 2019 Important features of space and time are taken to be missing in quantum gravity, allegedly requiring an explanation of the emergence of spacetime from non-spatio-temporal theories.
B. Le Bihan, Niels S. Linnemann
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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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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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Coherent states for canonical quantum general relativity and the infinite tensor product extension [PDF]
, 2001 We summarize a recently proposed concrete programme for investigating the (semi)classical limit of canonical, Lorentzian, continuum quantum general relativity in four spacetime dimensions.
H. Sahlmann, T. Thiemann, O. Winkler
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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 the Precision of a Length Measurement [PDF]
, 2007 We show that quantum mechanics and general relativity imply the existence of a minimal length. To be more precise, we show that no operational device subject to quantum mechanics, general relativity and causality could exclude the discreteness of ...
C.A. Mead +24 more
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