Results 31 to 40 of about 18,744 (207)
Coherent states for FLRW space-times in loop quantum gravity [PDF]
Physical Review D, 2011 We construct a class of coherent spin-network states that capture proprieties of curved space-times of the Friedmann-Lama tre-Robertson-Walker type on which they are peaked. The data coded by a coherent state are associated to a cellular decomposition of a spatial ($t=$const.) section with dual graph given by the complete five-vertex graph, though the
Elena Magliaro +2 more
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Analysis of fixation exercises for a High School class on quantized Space-time via Loop Quantum Gravity [PDF]
World Journal of Advanced Research and Reviews, 2022 The work addresses a part of the application with a class of 3rd year of high school, being a master's research project in Physics Teaching of the Federal University of the State of Rio de Janeiro, Brazil, within the program of the Brazilian Society of Physics, through the National Professional Master's degree in Physics Teaching.
Jizreel Pereira da Silva
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One-loop quantum gravity in Schwarzschild space-time [PDF]
Physical Review D, 1995 The quantum theory of linearized perturbations of the gravitational field of a Schwarzschild black hole is presented. The fundamental operators are seen to be the perturbed Weyl scalars $\dot _0$ and $\dot _4$ associated with the Newman-Penrose description of the classical theory.
Bruce P. Jensen +2 more
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Loop Quantum Gravity and Quantum Information [PDF]
, 2023 We summarize recent developments at the interface of quantum gravity and quantum information, and discuss applications to the quantum geometry of space in loop quantum gravity.
Eugenio Bianchi, E. Livine
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Revisiting loop quantum gravity with selfdual variables: classical theory [PDF]
Classical and quantum gravity, 2023 We review the classical formulation of general relativity as an SL(2,C) gauge theory in terms of Ashtekar’s self-dual variables and reality conditions for the spatial metric (first reality condition) and its evolution (second reality condition), and we ...
H. Sahlmann, Robert Seeger
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Towards a quantum notion of covariance in spherically symmetric loop quantum gravity [PDF]
Physical Review D, 2022 The covariance of loop quantum gravity studies of spherically symmetric space-times has recently been questioned. This is a reasonable worry, given that they are formulated in terms of slicing-dependent variables.
R. Gambini, J. Olmedo, J. Pullin
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Loop Quantum Gravity motivated multihorizon rotating black holes [PDF]
Journal of Cosmology and Astroparticle Physics, 2022 With a semiclassical polymerization in the loop quantum gravity (LQG), the interior of the Schwarzschild black holes provides a captivating single-horizon regular black hole spacetime.
J. Kumar +2 more
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Twisted geometry coherent states in all dimensional loop quantum gravity. II. Ehrenfest property [PDF]
Physical Review D, 2022 In the preceding paper of this series of articles we constructed the twisted geometry coherent states in all dimensional loop quantum gravity and established their peakedness properties. In this paper we establish the"Ehrenfest property"of these coherent
Gaoping Long
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A connection between fermionic strings and quantum gravity states: a loop space approach [PDF]
General Relativity and Gravitation, 2012 We present physical arguments based on loop space representations for Dirac/Klein gordon determinants that some suitable Fermionic String Ising models at the critical point and defined on the space-time base manifold are formal quantum states of the gravitational field when quantized in the Ashtekar-Sen connection canonical formalism .These results ...
Luiz C. L. Botelho
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Coherent states and particle scattering in loop quantum gravity [PDF]
The European Physical Journal C, 2022 Quantum field theory provides us with the means to calculate scattering amplitudes. In recent years a dramatic new development has lead to great simplification of such calculations.
D. Vaid, Devadharsini Suresh
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