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相关论文: Analytic continuation of real Loop Quantum Gravity…

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The quasi-local notion of an isolated horizon is employed to study the entropy of black holes without any particular symmetry in loop quantum gravity. The idea of characterizing the shape of a horizon by a sequence of local areas is…

广义相对论与量子宇宙学 · 物理学 2021-11-02 Shupeng Song , Haida Li , Yongge Ma , Cong Zhang

We provide a simple derivation of the corrections for Schwarzschild and Schwarzschild-Tangherlini black hole entropy without knowing the details of quantum gravity. We will follow Bekenstein, Wheeler and Jaynes ideas, using summations…

广义相对论与量子宇宙学 · 物理学 2018-01-31 Martin Blaschke , Zdeněk Stuchlík , Filip Blaschke , Petr Blaschke

In this work, we introduce an analytical approximate black hole solution in Einstein-Cubic gravity. To obtain complete solutions, we construct the near horizon and asymptotic solutions as the first step. Then, the approximate analytic…

广义相对论与量子宇宙学 · 物理学 2022-08-24 S. N. Sajadi , S. H. Hendi

Motivated by the analogy proposed by Witten between Chern-Simons and Conformal Field Theories, we explore an alternative way of computing the entropy of a black hole starting from the isolated horizon framework in Loop Quantum Gravity. The…

高能物理 - 理论 · 物理学 2015-03-12 Ivan Agullo , Enrique F. Borja , Jacobo Diaz-Polo

One quantum characterization of a black hole motivated by (local) holography and thermodynamics is that it maximizes thermodynamic entropy for a given surface area. In the context of quantum gravity, this could be more fundamental than the…

高能物理 - 理论 · 物理学 2025-01-29 Yuki Yokokura

Recently, there has been a lot of attention devoted to resolving the quantum corrections to the Bekenstein-Hawking entropy of the black hole. In particular, the coefficient of the logarithmic term in the black hole entropy correction has…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Zhao Ren , Zhao Hai-Xia , Hu Shuang-Qi

One proposal by Verlinde \cite{Verlinde:2010hp} is that gravity is not a fundamental, but an entropic force. In this way, Verlinde has provide us with a way to derive the Newton's law of gravitation from the Bekenstein-Hawking entropy-area…

广义相对论与量子宇宙学 · 物理学 2016-06-22 R. G. L. Aragão , C. A. S. Silva

We consider the quantization of the complete extension of the Schwarzschild space-time using spherically symmetric loop quantum gravity. We find an exact solution corresponding to the semi-classical theory. The singularity is eliminated but…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Rodolfo Gambini , Jorge Pullin

We study the quantization of spherically symmetric vacuum spacetimes within loop quantum gravity. In particular, we give additional details about our previous work in which we showed that one could complete the quantization the model and…

广义相对论与量子宇宙学 · 物理学 2016-12-20 Rodolfo Gambini , Javier Olmedo , Jorge Pullin

This survey intends to cover recent approaches to black hole entropy which attempt to go beyond the standard semiclassical perspective. Quantum corrections to the semiclassical Bekenstein-Hawking area law for black hole entropy, obtained…

高能物理 - 理论 · 物理学 2009-10-31 Parthasarathi Majumdar

In this paper we have improved the semiclassical analysis of loop quantum black hole (LQBH) in the conservative approach of constant polymeric parameter. In particular we have focused our attention on the space-time structure. We have…

广义相对论与量子宇宙学 · 物理学 2016-03-08 Leonardo Modesto

Earlier calculations of black hole entropy in loop quantum gravity have given a term proportional to the area with a correction involving the logarithm of the area when the area eigenvalue is close to the classical area. However the…

广义相对论与量子宇宙学 · 物理学 2014-06-25 P. Mitra

We present a semi-rigorous justification of Bekenstein's Generalized Second Law of Thermodynamics applicable to a universe with black holes present, based on a generic quantum gravity formulation of a black hole spacetime, where the bulk…

广义相对论与量子宇宙学 · 物理学 2024-04-03 Parthasarathi Majumdar

Black holes exist all over our Universe, possessing a very wide range of masses. At the moment, they serve as a probe to test general relativity at astrophysical scales, but in the future they may also give us information about gravity at…

高能物理 - 理论 · 物理学 2025-10-24 Tiago V. Fernandes

The quantized area predicted by loop quantum gravity suggests the existence of a lower bound for black-hole horizons. We prove this intuition within a covariant effective model for spherical loop quantum gravity, where nonsingular…

广义相对论与量子宇宙学 · 物理学 2025-09-01 Asier Alonso-Bardaji

We argue that the effective gauge group for {\it pure} four-dimensional loop quantum gravity(LQG) is SO(3) (or $SO(3,C)$) instead of SU(2) (or $SL(2,C)$). As a result, links with half-integer spins in spin network states are not realized…

广义相对论与量子宇宙学 · 物理学 2009-11-11 Chung-Hsien Chou , Yi Ling , Chopin Soo , Hoi-Lai Yu

Parikh-Wilczek tunnelling framework, which treats Hawking radiation as a tunnelling process, is investigated again. As the first order correction, the log-corrected entropy-area relation naturally emerges in the tunnelling picture if we…

高能物理 - 理论 · 物理学 2008-11-26 Jingyi Zhang

Semi-classical dilaton gravity in (1+1)-dimensions remains one of the only arenas where quantum black holes can be exactly constructed, fully accounting for backreaction due to quantum matter. Here we provide a comprehensive analysis of the…

广义相对论与量子宇宙学 · 物理学 2025-12-24 Jean Alexandre , Eleni-Alexandra Kontou , Diego Pardo Santos , Silvia Pla , Andrew Svesko

We investigate the black hole information paradox in the setting of pseudo-complex gravity, a covariant geometric extension of general relativity that introduces a minimal length scale by deforming the spacetime manifold. In this framework,…

广义相对论与量子宇宙学 · 物理学 2025-06-30 Fridolin Weberand Peter O. Hess , Cesar A. Zen Vasconcellos

The loop quantization of the Schwarzschild interior region, as described by a homogeneous anisotropic Kantowski-Sachs model, is re-examined. As several studies of different -inequivalent- loop quantizations have shown, to date there exists…

广义相对论与量子宇宙学 · 物理学 2016-02-15 Alejandro Corichi , Parampreet Singh