Results 31 to 40 of about 85,825 (273)
Black-Hole Models in Loop Quantum Gravity
Universe, 2020 Dynamical black-hole scenarios have been developed in loop quantum gravity in various ways, combining results from mini and midisuperspace models. In the past, the underlying geometry of space-time has often been expressed in terms of line elements with ...
Martin Bojowald
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European Physical Journal C: Particles and Fields, 2021 In this work, we investigate the quasinormal modes for a massive scalar field with a nonminimal coupling with gravity in the spacetime of a loop quantum black hole, known as the self-dual black hole.
J. S. Santos, M. B. Cruz, F. A. Brito
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New tools for Loop Quantum Gravity with applications to a simple model [PDF]
, 2012 Loop Quantum Gravity is now a well established approach to quantum gravity. One of the main challenges still faced by the theory is constructing a consistent dynamics which would lead back to the standard dynamics of the gravitational field at large ...
Borja, Enrique F. +4 more
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On loop states in loop-quantum gravity [PDF]
Classical and Quantum Gravity, 2007 We explicitly construct and characterize all possible independent loop states in 3+1 dimensional loop quantum gravity by regulating it on a 3-d regular lattice in the Hamiltonian formalism. These loop states, characterized by the (dual) angular momentum quantum numbers, describe SU(2) rigid rotators on the links of the lattice.
Dass, N. D. Hari, Mathur, Manu
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FUNDAMENTAL STRUCTURE OF LOOP QUANTUM GRAVITY [PDF]
International Journal of Modern Physics D, 2007 In the recent twenty years, loop quantum gravity, a background independent approach to unify general relativity and quantum mechanics, has been widely investigated. The aim of loop quantum gravity is to construct a mathematically rigorous, background independent, non-perturbative quantum theory for a Lorentzian gravitational field on a four ...
Han, Muxin, Ma, Yongme, Huang, Weiming
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Primordial Fluctuations From Quantum Gravity
Frontiers in Astronomy and Space Sciences, 2021 We study the fluctuations and the correlations between spatial regions generated in the primordial quantum gravitational era of the universe. We point out that these can be computed using the Lorentzian dynamics defined by the Loop Quantum Gravity ...
Francesco Gozzini, Francesca Vidotto
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Astronomische Nachrichten, 2011 AbstractIn this talk, I give a short general introduction to Loop Quantum Gravity (LQG), beginning with some motivations for quantizing General Relativity, listing various attempts and then focusing on the case of LQG. (© 2014 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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Cosmological Footprints of Loop Quantum Gravity [PDF]
Physical Review Letters, 2009 Accepted by Phys. Rev.
Grain, J., Barrau, A.
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1/N correction in holographic Wilson loop from quantum gravity
Journal of High Energy Physics, 2019 We study 1/N corrections to a Wilson loop in holographic duality. Extending the AdS/CFT correspondence beyond the large N limit is an important but a subtle issue, as it needs quantum gravity corrections in the gravity side.
Koji Hashimoto +2 more
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Particle Scattering in Loop Quantum Gravity [PDF]
Physical Review Letters, 2005 We devise a technique for defining and computing n-point functions in the context of a background-independent gravitational quantum field theory. We construct a tentative implementation of this technique in a perturbatively-finite loop/spinfoam model.
Modesto, Leonardo, Rovelli, Carlo
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