Results 11 to 20 of about 258,058 (340)
Gravity in quantum spacetime [PDF]
International Journal of Modern Physics D, 2010 The literature on quantum-gravity-inspired scenarios for the quantization of spacetime has so far focused on particle-physics-like studies. This is partly justified by the present limitations of our understanding of quantum-gravity theories, but we here ...
Amelino-Camelia G. +8 more
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On quantum gravity and quantum gravity phenomenology
The Sixteenth Marcel Grossmann Meeting, 2023 This article summarizes a new approach to quantum gravity based on the concepts of modular spacetime, Born geometry, and metastring theory and their applications to quantum gravity phenomenology. In particular, we discuss a new understanding of dark matter in terms of metaparticles (zero modes of the metastring) and its relation to dark energy (the ...
Edmonds, Douglas +2 more
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SYNCHRONOUS QUANTUM GRAVITY [PDF]
International Journal of Modern Physics A, 2008 The implications of restricting the covariance principle within a Gaussian gauge are developed both on a classical and a quantum level. Hence, we investigate the cosmological issues of the obtained Schrödinger Quantum Gravity with respect to the asymptotically early dynamics of a generic Universe.
CIANFRANI, Francesco, MONTANI, Giovanni
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Quantum channels in quantum gravity [PDF]
International Journal of Modern Physics D, 2014 The black hole final state proposal implements manifest unitarity in the process of black hole formation and evaporation in quantum gravity, by postulating a unique final state boundary condition at the singularity. We argue that this proposal can be embedded in the gauge/gravity context by invoking a path integral formalism inspired by the Schwinger ...
Rangamani, Mukund, Rota, Massimilliano
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International Journal of Modern Physics D, 2001 The Wheeler–DeWitt equation in quantum gravity is timeless in character. In order to discuss quantum to classical transition of the universe, one uses a time prescription in quantum gravity to obtain a time contained description starting from Wheeler–DeWitt equation and WKB ansatz for the WD wavefunction. The approach has some drawbacks. In this work,
Biswas, S., Shaw, A., Modak, B.
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Fermions in quantum gravity [PDF]
Physical Review Letters, 1994 We study the quantum fermions+gravity system, that is, the gravitational counterpart of QED. We start from the standard Einstein-Weyl theory, reformulated in terms of Ashtekar variables; and we construct its non- perturbative quantum theory by extending the loop representation of general relativity.
Morales-Técotl, Hugo A., Rovelli, Carlo
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QUANTUM GRAVITY AND TURBULENCE [PDF]
International Journal of Modern Physics D, 2010 We apply recent advances in quantum gravity to the problem of turbulence. Adopting the AdS/CFT approach we propose a string theory of turbulence that explains the Kolmogorov scaling in 3 + 1 dimensions and the Kraichnan and Kolmogorov scalings in 2 + 1 dimensions.
Jejjala, Vishnu +3 more
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Quantum Geometry and Quantum Gravity [PDF]
AIP Conference Proceedings, 2008 To appear in the AIP Conference Proceedings of the XVI International Fall Workshop on Geometry and Physics, Lisbon - Portugal, 5-8 September ...
J. Fernando Barbero G. +2 more
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Dilaton Gravity with a Non-minmally Coupled Scalar Field [PDF]
, 2000 We discuss the two-dimensional dilaton gravity with a scalar field as the source matter. The coupling between the gravity and the scalar, massless, field is presented in an unusual form.
Callan C. G. +6 more
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Periodic Modification of the Boerdijk–Coxeter Helix (tetrahelix)
Mathematics, 2019 The Boerdijk−Coxeter helix is a helical structure of tetrahedra which possesses no non-trivial translational or rotational symmetries. In this document, we develop a procedure by which this structure is modified to obtain both translational and ...
Garrett Sadler +3 more
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