Results 21 to 30 of about 500,703 (203)
On gonihedric loops and quantum gravity [PDF]
Journal of Physics A: Mathematical and General, 2006 We present an analysis of the gonihedric loop model, a reformulation of the two dimensional gonihedric spin model, using two different techniques. First, the usual regular lattice statistical physics problem is mapped onto a height model and studied analytically.
D. Espriu, Alberto Prats‐Galino
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International Journal of Modern Physics D, 2014 This paper presents an "in-a-nutshell" yet self-contained introductory review on loop quantum gravity (LQG) — a background-independent, nonperturbative approach to a consistent quantum theory of gravity. Instead of rigorous and systematic derivations, it aims to provide a general picture of LQG, placing emphasis on the fundamental ideas and their ...
Dah-Wei Chiou, Dah-Wei Chiou
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Let Loop Quantum Gravity and Affine Quantum Gravity Examine Each Other [PDF]
Journal of High Energy Physics, Gravitation and Cosmology > Vol.7
No.3, July 2021, 2021 Loop Quantum Gravity is widely developed using canonical quantization in an effort to find the correct quantization for gravity. Affine quantization, which is like canonical quantization augmented bounded in one orientation, e.g., a strictly positive coordinate. We open discussion using canonical and affine quantizations for two simple problems so each
arxiv +1 more source
Extended loop quantum gravity [PDF]
Classical and Quantum Gravity, 2010 We discuss constraint structure of extended theories of gravitation (also known as f(R) theories) in the vacuum selfdual formulation introduced in ref. [1].
Mauro Francaviglia +3 more
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Quantum information in loop quantum gravity
Journal of Physics: Conference Series, 2006 RevTex, 5 pages. Proceedings of QG'05, Cala Gonone, 2005 Relations of the coarse-graining and partial tracing are clarified, and the references are ...
Daniel R. Terno
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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.
Leonardo Modesto, Carlo Rovelli
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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.
Manu Mathur, N. D. Hari Dass
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Automorphisms in loop quantum gravity [PDF]
Classical and Quantum Gravity, 2009 57 pages, 7 ...
Thomas Thiemann, Benjamin Bahr
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Loop Quantum Gravity and Observations [PDF]
, 2017 Quantum gravity has long been thought to be completely decoupled from experiments or observations. Although it is true that smoking guns are still missing, there are now serious hopes that quantum gravity phenomena might be tested. We review here some possible ways to observe loop quantum gravity effects either in the framework of cosmology or in ...
Barrau, A., Grain, J.
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Polyhedra in loop quantum gravity [PDF]
Physical Review D, 2011 Interwiners are the building blocks of spin-network states. The space of intertwiners is the quantization of a classical symplectic manifold introduced by Kapovich and Millson. Here we show that a theorem by Minkowski allows us to interpret generic configurations in this space as bounded convex polyhedra in Euclidean space: a polyhedron is uniquely ...
Bianchi, Eugenio +2 more
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