Results 41 to 50 of about 85,825 (273)
Shadow and stability of quantum-corrected black holes
European Physical Journal C: Particles and Fields, 2023 Recently the quantum Oppenheimer–Snyder gravitational collapse model has been proposed in loop quantum gravity, providing quantum-corrected Schwarzschild spacetimes as the exterior of the collapsing dust ball.
Jinsong Yang, Cong Zhang, Yongge Ma
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Gravitational Thermodynamics of Space-time Foam in One-loop Approximation [PDF]
, 1999 We show from one-loop quantum gravity and statistical thermodynamics that the thermodynamics of quantum foam in flat space-time and Schwarzschild space-time is exactly the same as that of Hawking-Unruh radiation in thermal equilibrium. This means we show
Coleman S. +5 more
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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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(b,v)-type variables for black to white hole transitions in effective loop quantum gravity
Physics Letters B, 2021 Quantum gravity effects in effective models of loop quantum gravity, such as loop quantum cosmology, are encoded in the choice of so-called polymerisation schemes.
Norbert Bodendorfer +2 more
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Loop Quantum Cosmology from Loop Quantum Gravity
EPL (Europhysics Letters), 2014 We show how Loop Quantum Cosmology can be derived as an effective semiclassical description of Loop Quantum Gravity. Using the tools of QRLG, a gauge fixed version of LQG, we take the coherent states of the fundamental microscopic theory suitable to describe a Bianchi I Universe and we find a mapping between the expectation value of the Hamiltonian and
Alesci, Emanuele, Cianfrani, Francesco
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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
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Extended loop representation of quantum gravity [PDF]
Physical Review D, 1995 27 pages, report IFFC/94 ...
Di Bartolo, C., Gambini, R., Griego, J.
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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
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Loop Quantum Gravity Phenomenology: Linking Loops to Observational Physics
Symmetry, Integrability and Geometry: Methods and Applications, 2012 Research during the last decade demonstrates that effects originating on the Planck scale are currently being tested in multiple observational contexts.
Florian Girelli +2 more
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Quantum isolated horizons and black hole entropy
, 2012 We give a short introduction to the approaches currently used to describe black holes in loop quantum gravity. We will concentrate on the classical issues related to the modeling of black holes as isolated horizons, give a short discussion of their ...
G., J. Fernando Barbero +2 more
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