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相关论文: Quantum corrections for (anti)-evaporating black h…

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By applying Rosen's quantization approach to the historical Oppenheimer and Snyder gravitational collapse and by setting the constraints for the formation of the Schwarzschild black hole (SBH), in a previous paper [1] two of the Authors (CC…

广义相对论与量子宇宙学 · 物理学 2022-11-28 C. Corda , F. Feleppa , F. Tamburini , I. Licata

The quantum corrections to the entropy of charged black holes are calculated. The Reissner-Nordstrem and dilaton black holes are considered. The appearance of logarithmically divergent terms not proportional to the horizon area is…

高能物理 - 理论 · 物理学 2011-05-05 S. N. Solodukhin

Coherent quantum black holes are quantum geometries obtained by means of a mean-field-like approach to the gravitational interaction. This procedure attenuates the classical spacetime singularities of general relativity by replacing them…

广义相对论与量子宇宙学 · 物理学 2025-05-14 Tommaso Antonelli , Andrea Giusti , Roberto Casadio , Lavinia Heisenberg

We consider two-dimensional dilaton-gravity theories with a generic exponential potential for the dilaton, and obtain the most general black hole solutions in the Schwarzshild form. We discuss their geometrical and thermodynamical…

高能物理 - 理论 · 物理学 2009-10-28 S. Mignemi

In a previous work we derived an effective Hamiltonian constraint for the Schwarzschild geometry starting from the full loop quantum gravity Hamiltonian constraint and computing its expectation value on coherent states sharply peaked around…

广义相对论与量子宇宙学 · 物理学 2019-09-13 Emanuele Alesci , Sina Bahrami , Daniele Pranzetti

In this paper, we study quantum corrections to the temperature and entropy of a regular Ay\'{o}n-Beato-Garc\'{\i}a-Bronnikov black hole solution by using tunneling approach beyond semiclassical approximation. We use the first law of black…

广义相对论与量子宇宙学 · 物理学 2015-05-30 M. Sharif , Wajiha Javed

In the work \cite{BRM,RBE}, black hole spectroscopy has been successfully reproduced in the tunneling picture. As a result, the derived entropy spectrum of black hole in different gravity (including Einstein's gravity, Einstein-Gauss-Bonnet…

高能物理 - 理论 · 物理学 2010-11-19 Qing-Quan Jiang , Yan Han , Xu Cai

The first quantum corrections to the entropy for an eternal 4-dimensional extremal Reissner-Nordstr\"om black hole is investigated at one-loop level, in the large mass limit of the black hole, making use of the conformal techniques related…

高能物理 - 理论 · 物理学 2009-10-28 G. Cognola , L. Vanzo , S. Zerbini

In this paper we calculate modifications to the Schwarzschild solution by using a semiclassical analysis of loop quantum black hole. We obtain a metric inside the event horizon that coincides with the Schwarzschild solution near the horizon…

广义相对论与量子宇宙学 · 物理学 2009-07-24 Leonardo Modesto

We are interested in black holes in Loop Quantum Gravity (LQG). We study the simple model of static black holes: the horizon is made of a given number of identical elementary surfaces and these small surfaces all behaves as a spin-s system…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Etera R. Livine , Daniel R. Terno

We determine the corrections to the Schwarzschild geometry arising from including the Goroff- Sagnotti counterterm in the gravitational dynamics. We find that static, asymptotically flat, and spherically symmetric geometries are completely…

广义相对论与量子宇宙学 · 物理学 2024-02-22 Jesse Daas , Cristobal Laporte , Frank Saueressig

Vacuum spherically symmetric loop quantum gravity in the midi-superspace approximation using inhomogeneous horizon-penetrating slices has been studied for a decade, and it has been noted that the singularity is eliminated. It is replaced by…

广义相对论与量子宇宙学 · 物理学 2024-02-20 Rodolfo Gambini , Javier Olmedo , Jorge Pullin

We study spherical charged black holes in the presence of a cosmological constant with corrections motivated by the theory of loop quantum gravity. The effective theory is constructed at the Hamiltonian level by introducing certain…

广义相对论与量子宇宙学 · 物理学 2023-04-12 Asier Alonso-Bardaji , David Brizuela , Raül Vera

We present a detailed study of the static spherically symmetric solutions in de Rham-Gabadadze-Tolley (dRGT) theory. Since the diffeomorphism invariance can be restored by introducing the St\"{u}ckelberg fields $\phi^a$, there is new…

广义相对论与量子宇宙学 · 物理学 2016-04-13 Ping Li , Xin-zhou Li , Ping Xi

We compute the first-order correction in the quartic coupling $\alpha$ to the entanglement entropy of a massive, non-minimally coupled scalar across the horizon of a four-dimensional Schwarzschild black hole, treating the non-minimal…

广义相对论与量子宇宙学 · 物理学 2026-04-21 Florin Manea

A static, asymptotically flat, spherically symmetric solutions is investigated in f(R) theories of gravity for a charged black hole. We have studied the weak field limit of f(R) gravity for the some f(R) model such as f(R) = R + epsilon…

广义相对论与量子宇宙学 · 物理学 2011-09-13 A. Aghamohammadi , Kh. Saaidi , M. R. Abolhasani , A. Vajdi

We continue the study of the non-metric theory of gravity introduced in hep-th/0611182 and gr-qc/0703002 and obtain its general spherically symmetric vacuum solution. It respects the analog of the Birkhoff theorem, i.e., the vacuum…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Kirill Krasnov , Yuri Shtanov

We study the quantum gravitational effects in spherically symmetric black hole spacetimes. The effective quantum spacetime felt by a point-like test mass is constructed by ``renormalization group improving'' the Schwarzschild metric. The…

高能物理 - 理论 · 物理学 2009-10-31 A. Bonanno , M. Reuter

Attention is paid to the fact that temperature of a classical black hole can be derived from the extremality condition of its free energy with respect to variation of the mass of a hole. For a quantum Schwarzschild black hole evaporating…

高能物理 - 理论 · 物理学 2009-12-30 D. V. Fursaev

In the extended phase space, we investigate the rainbow gravity-corrected thermodynamic phenomena and phase structure of the Schwarzschild black hole surrounded by a spherical cavity. The results show that rainbow gravity has a very…

广义相对论与量子宇宙学 · 物理学 2022-08-30 Zhong-Wen Feng , Xia Zhou , Shi-Qi Zhou , Shu-Zheng Yang