Results 81 to 90 of about 640,772 (343)
Coherent intertwiner solution of simplicity constraint in all dimensional loop quantum gravity [PDF]
Physical Review D, 2019 We propose a new treatment of the quantum simplicity constraints appearing in the general ${SO(D+1)}$ formulation of loop quantum gravity for the ${(1+D)}$-dimensional space-time. Instead of strongly imposing the constraints, we construct a specific form
Gaoping Long, Chunshan Lin, Yongge Ma
semanticscholar +1 more source
Information loss, made worse by quantum gravity?
Frontiers in Physics, 2015 Quantum gravity is often expected to solve both the singularity problem and the information-loss problem of black holes. This article presents an example from loop quantum gravity in which the singularity problem is solved in such a way that the ...
Martin eBojowald
doaj +1 more source
Symmetry Reduction of Loop Quantum Gravity
, 2011 The relation between standard Loop Quantum Cosmology and full Loop Quantum Gravity fails already at the first nontrivial step: The configuration space of Loop Quantum Cosmology can not be embedded into the configuration space of full Loop Quantum Gravity
Brunnemann, Johannes, Koslowski, Tim A.
core +1 more source
Loop Quantum Gravity Modification of the Compton Effect [PDF]
, 2006 Modified dispersion relations(MDRs) as a manifestation of Lorentz invariance violation, have been appeared in alternative approaches to quantum gravity problem.
A.A. Andrianov +20 more
core +4 more sources
Bouncing evolution in a model of loop quantum gravity [PDF]
Physical Review D, 2019 To understand the dynamics of loop quantum gravity, the deparametrized model of gravity coupled to a scalar field is studied in a simple case, where the graph underlying the spin network basis is one loop based at a single vertex.
Cong Zhang +3 more
semanticscholar +1 more source
Polar gravitational perturbations and quasinormal modes of a loop quantum gravity black hole
, 2020 In this work, we have calculated the polar gravitational quasinormal modes for a quantum corrected black hole model, that arises in the context of Loop Quantum Gravity, known as Self-Dual Black Hole.
M. Cruz, F. A. Brito, C. A. S. Silva
semanticscholar +1 more source
Gravitational Lensing Effects from Models of Loop Quantum Gravity with Rigorous Quantum Parameters
UniverseMany previous works have studied gravitational lensing effects from Loop Quantum Gravity. So far, gravitational lensing effects from Loop Quantum Gravity have only been studied by choosing large quantum parameters much larger than the Planck scale ...
Haida Li, Xiangdong Zhang
doaj +1 more source
Improved μ¯ -scheme effective dynamics of full loop quantum gravity [PDF]
, 2019 We propose a new derivation from the full Loop Quantum Gravity (LQG) to the Loop Quantum Cosmology (LQC) improved $\bar{\mu}$-scheme effective dynamics, based on the reduced phase space formulation of LQG and a proposal of effective Hamiltonian/action in
Muxin Han, Hongguang Liu
semanticscholar +1 more source
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
core +3 more sources
Gauge-invariant bounce from loop quantum gravity [PDF]
Classical and quantum gravity, 2019 We present a gauge-invariant treatment of singularity resolution using loop quantum gravity techniques with respect to local SU(2) transformations. Our analysis reveals many novel features of quantum geometry which were till now hidden in models based on
K. Liegener, Parampreet Singh
semanticscholar +1 more source