Results 31 to 40 of about 2,494 (198)

Quasinormal modes of a massive scalar field nonminimally coupled to gravity in the spacetime of self-dual black hole

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
In this work, we investigate the quasinormal modes for a massive scalar field with a nonminimal coupling with gravity in the spacetime of a loop quantum black hole, known as the self-dual black hole.
J. S. Santos, M. B. Cruz, F. A. Brito
doaj   +1 more source

Primordial Fluctuations From Quantum Gravity

open access: yesFrontiers in Astronomy and Space Sciences, 2021
We study the fluctuations and the correlations between spatial regions generated in the primordial quantum gravitational era of the universe. We point out that these can be computed using the Lorentzian dynamics defined by the Loop Quantum Gravity ...
Francesco Gozzini, Francesca Vidotto
doaj   +1 more source

1/N correction in holographic Wilson loop from quantum gravity

open access: yesJournal of High Energy Physics, 2019
We study 1/N corrections to a Wilson loop in holographic duality. Extending the AdS/CFT correspondence beyond the large N limit is an important but a subtle issue, as it needs quantum gravity corrections in the gravity side.
Koji Hashimoto   +2 more
doaj   +1 more source

Shadow and stability of quantum-corrected black holes

open access: yesEuropean 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
doaj   +1 more source

AN INVITATION TO LOOP QUANTUM GRAVITY [PDF]

open access: yesQuantum Theory and Symmetries, 2004
50 pages, to be submitted to Reviews of Modern ...
openaire   +2 more sources

Information loss, made worse by quantum gravity?

open access: yesFrontiers 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

Gravitational Lensing Effects from Models of Loop Quantum Gravity with Rigorous Quantum Parameters

open access: yesUniverse
Many 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

Quantum reduced loop gravity and the foundation of loop quantum cosmology [PDF]

open access: yesInternational Journal of Modern Physics D, 2016
Quantum reduced loop gravity is a promising framework for linking loop quantum gravity and the effective semiclassical dynamics of loop quantum cosmology. We review its basic achievements and its main perspectives, outlining how it provides a quantum description of the Universe in terms of a cuboidal graph which constitutes the proper framework for ...
Emanuele Alesci, Francesco Cianfrani
openaire   +3 more sources

Loop Quantum Gravity Phenomenology: Linking Loops to Observational Physics

open access: yesSymmetry, 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
doaj   +1 more source

Quantum black holes in loop quantum gravity [PDF]

open access: yesClassical and Quantum Gravity, 2014
20 pages.
Rodolfo Gambini   +2 more
openaire   +3 more sources

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