Shadows of loop quantum black holes: semi-analytical simulations of loop quantum gravity effects on Sagittarius A* and M87* [PDF]
Journal of Cosmology and Astroparticle Physics, 2023 In this study, we delve into the observational implications of rotating Loop Quantum Black Holes (LQBHs) within an astrophysical framework. We employ semi-analytical General Relativistic Radiative Transfer (GRRT) computations to study the emission from ...
Hong-Xuan Jiang +6 more
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Tests of Loop Quantum Gravity from the Event Horizon Telescope Results of Sgr A* [PDF]
Astrophysical Journal, 2022 The Event Horizon Telescope (EHT) collaboration’s image of the compact object at the Galactic center is the first direct evidence of the supermassive black hole (BH) Sgr A*. The shadow of Sgr A* has an angular diameter d sh = 48.7 ± 7 μas with fractional
Misba Afrin +2 more
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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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Particles in Loop Quantum Gravity formalism: a thermodynamical description [PDF]
, 2022 In this work, we analyse the thermodynamical behavior of massive and massless particles within Loop Quantum Gravity formalism. We investigate a modified dispersion relation which suffices to derive all our results of interest in an \textit{analytical ...
A. A. A. Filho
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Gravitational lensing by a black hole in effective loop quantum gravity [PDF]
Physical Review D, 2021 It is well known that general relativity is an effective theory of gravity at low energy scale, and actually quantum effects cannot be ignored in the strong-field regime.
Qi-Ming Fu, Xin Zhang
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Spherically symmetric loop quantum gravity: analysis of improved dynamics [PDF]
Classical and quantum gravity, 2020 We study the ‘improved dynamics’ for the treatment of spherically symmetric space-times in loop quantum gravity introduced by Chiou et al in analogy with the one that has been constructed by Ashtekar, Pawlowski and Singh for the homogeneous space-times ...
R. Gambini, J. Olmedo, J. Pullin
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Black hole collapse and bounce in effective loop quantum gravity [PDF]
Classical and quantum gravity, 2020 We derive effective equations with loop quantum gravity corrections for the Lemaître–Tolman–Bondi family of space-times, and use these to study quantum gravity effects in the Oppenheimer–Snyder collapse model.
Jarod George Kelly +2 more
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Effective loop quantum gravity framework for vacuum spherically symmetric spacetimes [PDF]
Physical Review D, 2020 We develop an effective framework for the $\bar\mu$ scheme of holonomy corrections motivated by loop quantum gravity for vacuum spherically symmetric space-times.
Jarod George Kelly +2 more
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A consistent model of non-singular Schwarzschild black hole in loop quantum gravity and its quasinormal modes [PDF]
Journal of Cosmology and Astroparticle Physics, 2020 We investigate the interior structure, perturbations, and the associated quasinormal modes of a quantum black hole model recently proposed by Bodendorfer, Mele, and Münch (BMM).
Mariam Bouhmadi-L'opez +4 more
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Black Hole Evaporation: A Perspective from Loop Quantum Gravity [PDF]
Universe, 2020 A personal perspective on the black hole evaporation process is presented using, as guidelines, inputs from: (i) loop quantum gravity, (ii) simplified models where concrete results have been obtained, and, (iii) semi-classical quantum general relativity.
A. Ashtekar
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