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Loop Quantum Gravity is a theory that attempts to describe the quantum mechanics of the gravitational field based on the canonical quantization of General Relativity. According to Loop Quantum Gravity, in a gravitational field, geometric…

广义相对论与量子宇宙学 · 物理学 2021-12-16 W. F. Chagas-Filho

In this paper we summarize "loop quantum gravity" (LQG) and we show how ideas developed in LQG can solve the black hole singularity problem when applied to a minisuperspace model.

高能物理 - 理论 · 物理学 2007-05-23 Leonardo Modesto

This article presents an "in-a-nutshell" yet self-contained introductory review on loop quantum gravity (LQG) -- a background-independent, nonperturbative approach to a consistent quantum theory of gravity. Instead of rigorous and…

广义相对论与量子宇宙学 · 物理学 2014-12-30 Dah-Wei Chiou

There is rich literature on regular black holes from loop quantum gravity (LQG), where quantum geometry effects resolve the singularity, leading to a quantum extension of the classical space-time. As we will see, the mechanism that resolves…

广义相对论与量子宇宙学 · 物理学 2023-01-05 Abhay Ashtekar , Javier Olmedo , Parampreet Singh

An outstanding open issue in our quest for physics beyond Einstein is the unification of general relativity (GR) and quantum physics. Loop quantum gravity (LQG) is a leading approach toward this goal. At its heart is the central lesson of…

广义相对论与量子宇宙学 · 物理学 2021-04-12 Abhay Ashtekar , Eugenio Bianchi

Loop Quantum Gravity is a formalism for describing the quantum mechanics of the gravitational field based on the canonical quantization of General Relativity. The most important result of LQG is that geometric quantities such as area and…

广义相对论与量子宇宙学 · 物理学 2019-10-25 W. F. Chagas-Filho

With a semiclassical polymerization in the loop quantum gravity (LQG), the interior of Schwarzschild black holes provides a captivating single-horizon regular black hole spacetime. The shortage of rotating black hole models in loop quantum…

广义相对论与量子宇宙学 · 物理学 2022-11-23 Jitendra Kumar , Shafqat Ul Islam , Sushant G. Ghosh

It is believed that in the near future, gravitational wave detections will become a promising tool not only to test gravity theories, but also to probe extremely curved spacetime regions in our universe, such as the surroundings of black…

广义相对论与量子宇宙学 · 物理学 2019-05-15 Che-Yu Chen , Pisin Chen

Loop Quantum Gravity (L.Q.G.) is one of the two most promising tentative theory for a quantum description of gravity. When applied to the entire universe, the so-called Loop Quantum Cosmology (L.Q.C.) framework offers microscopical models…

广义相对论与量子宇宙学 · 物理学 2014-11-20 J. Grain

The Loop Quantum Gravity (LQG) program is briefly reviewed and one of its main applications, namely the counting of black hole entropy within the framework is considered. In particular, recent results for Planck size black holes are…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Alejandro Corichi , Jacobo Diaz-Polo , Enrique Fernandez-Borja

The problem of finding the quantum theory of the gravitational field, and thus understanding what is quantum spacetime, is still open. One of the most active of the current approaches is loop quantum gravity. Loop quantum gravity is a…

广义相对论与量子宇宙学 · 物理学 2016-10-19 Carlo Rovelli

A quest for phenomenological footprints of quantum gravity is among the central scientific tasks in the rising era of gravitational wave astronomy. We study gravitational wave dynamics within the noncommutative geometry framework, based on…

广义相对论与量子宇宙学 · 物理学 2024-05-24 Nikola Herceg , Tajron Jurić , Andjelo Samsarov , Ivica Smolić , Kumar S. Gupta

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. In this way, we have calculated the…

广义相对论与量子宇宙学 · 物理学 2020-09-09 M. B. Cruz , F. A. Brito , C. A. S. Silva

This letter aims at showing that the observation of evaporating black holes should allow distinguishing between the usual Hawking behavior and Loop Quantum Gravity (LQG) expectations. We present a full Monte-Carlo simulation of the…

广义相对论与量子宇宙学 · 物理学 2015-05-30 Aurelien Barrau , Xiangyu Cao , Jacobo Diaz-Polo , Julien Grain , Thomas Cailleteau

Within a generally covariant Hamiltonian framework of loop quantum gravity (LQG), two black hole models parameterized by a quantum correction $\zeta$ have recently been constructed. Using extreme mass-ratio inspirals (EMRIs) as…

广义相对论与量子宇宙学 · 物理学 2026-02-10 Ruo-Ting Chen , Guoyang Fu , Dan Zhang , Jian-Pin Wu

We analyze the quasinormal modes (QNMs) of a recently obtained solution of a Schwarzschild black hole (BH) with corrections motivated by Loop Quantum Gravity (LQG). This spacetime is regular everywhere and presents the global structure of a…

广义相对论与量子宇宙学 · 物理学 2023-05-17 Zeus S. Moreira , Haroldo C. D. Lima Junior , Luís C. B. Crispino , Carlos A. R. Herdeiro

We analyze the gravitational radiation emitted from a particle in circular motion around a Schwarzschild black hole using the framework of quantum field theory in curved spacetime at tree level. The gravitational perturbations are written…

广义相对论与量子宇宙学 · 物理学 2017-04-03 Rafael P. Bernar , Luís C. B. Crispino , Atsushi Higuchi

We consider Loop Quantum Gravity(LQG) motivated $4D$ polymerized black hole and study shadow, quasinormal modes, and Hawking radiation. We obtain analytical expressions of photonsphere radius and shadow radius and study their qualitative…

广义相对论与量子宇宙学 · 物理学 2023-10-10 Sohan Kumar Jha

The aim of this dissertation is to review `Loop Quantum Gravity', explaining the main structure of the theory and indicating its main open issues. We will develop the two main lines of research for the theory: the canonical quantization…

广义相对论与量子宇宙学 · 物理学 2018-08-06 Pablo Antonio Moreno Casares

In this study, we investigate the black hole shadow of an exact black hole solution of the loop quantum gravity (LQG) theory. We discuss some of its optical characteristics after generalizing it to the rotational case, including null…

广义相对论与量子宇宙学 · 物理学 2025-10-21 Shu Luo , Cheng-Hao Li
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