Results 21 to 30 of about 120,147 (251)
(b,v)-type variables for black to white hole transitions in effective loop quantum gravity
Physics Letters B, 2021 Quantum gravity effects in effective models of loop quantum gravity, such as loop quantum cosmology, are encoded in the choice of so-called polymerisation schemes.
Norbert Bodendorfer +2 more
doaj +1 more source
Modular quantum cosmology [PDF]
Classical and Quantum Gravity, 1999 Latex, 23 pages, 1 figure.
Bertolami, Orfeu, Schiappa, Ricardo
openaire +3 more sources
Classical and Quantum Solutions and the Problem of Time in $R^2$ Cosmology [PDF]
, 1995 We have studied various classical solutions in $R^2$ cosmology. Especially we have obtained general classical solutions in pure $R^2$\ cosmology. Even in the quantum theory, we can solve the Wheeler-DeWitt equation in pure $R^2$\ cosmology exactly ...
Banks T +22 more
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Modern cosmology: 100 years of quantum science [PDF]
Kragujevac Journal of ScienceIn this article, we contribute to the special issue of the Kragujevac Journal of Science devoted to the International Year of Quantum Science and Technology (IYQ2025). We discuss several connections between Quantum Theory and Modern Cosmology.
Dimitrijević Dragoljub D. +1 more
doaj +1 more source
Higher dimensional Loop Quantum Cosmology [PDF]
, 2015 Loop quantum cosmology(LQC) is the symmetric model of loop quantum gravity. In this paper, we generalize the structure of loop quantum cosmology to the theories with arbitrary spacetime dimensions.
Zhang, Xiangdong
core +2 more sources
Ψ-epistemic quantum cosmology? [PDF]
Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics, 2016 This paper provides a prospectus for a new way of thinking about the wavefunction of the universe: a $\Psi$-epistemic quantum cosmology. We present a proposal that, if successfully implemented, would resolve the cosmological measurement problem and simultaneously allow us to think sensibly about probability and evolution in quantum cosmology.
Evans, P.W. +3 more
openaire +5 more sources
Quantum cosmological backreactions. III. Deparametrized quantum cosmological perturbation theory
Physical Review D, 2022 This is the third paper in a series of four in which we use space adiabatic methods in order to incorporate backreactions among the homogeneous and between the homogeneous and inhomogeneous degrees of freedom in quantum cosmological perturbation theory.
S. Schander, T. Thiemann
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L'emergenza dello spazio-tempo nella gravità quantistica e nella cosmologia quantistica
Philosophy Kitchen, 2019 Our best description of spacetime is provided by general relativity – yet, this theory is not thought to be fundamental. Instead, it is expected to be replaced by a theory of quantum gravity, which may not feature spacetime fundamentally.
Karen Crowther
doaj +1 more source
The Semiclassical Limit of Loop Quantum Cosmology [PDF]
, 2001 The continuum and semiclassical limits of isotropic, spatially flat loop quantum cosmology are discussed, with an emphasis on the role played by the Barbero-Immirzi parameter \gamma in controlling space-time discreteness.
Ashtekar A +20 more
core +3 more sources
Quantum cosmological backreactions. IV. Constrained quantum cosmological perturbation theory
Physical Review D, 2022 This is the fourth paper in a series of four in which we use space adiabatic methods in order to incorporate backreactions among the homogeneous and between the homogeneous and inhomogeneous degrees of freedom in quantum cosmological perturbation theory.
S. Schander, T. Thiemann
openaire +3 more sources