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相关论文: Symmetries and solvable models for evaporating 2D …

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We study the evaporation process of 2D black holes in thermal equilibrium when the incoming radiation is turned off. Our analysis is based on two different classes of 2D dilaton gravity models which are exactly solvable in the semiclassical…

高能物理 - 理论 · 物理学 2009-10-30 J. Cruz , J. Navarro-Salas

This thesis is a review of black hole evaporation with emphasis on recent results obtained for two dimensional black holes. First, the geometry of the most general stationary black hole in four dimensions is described and some classical…

高能物理 - 理论 · 物理学 2007-05-23 Farid Benachenhou

Black hole evaporation may lead to massive or massless remnants, or naked singularities. This paper investigates this process in the context of two quite different two dimensional black hole models. The first is the original CGHS model, the…

高能物理 - 理论 · 物理学 2010-11-01 David A. Lowe

Quantum evaporation of Callan-Giddings-Harvey-Strominger (CGHS) black holes is analyzed in the mean field approximation. This semi-classical theory incorporates back reaction. Detailed analytical and numerical calculations show that, while…

广义相对论与量子宇宙学 · 物理学 2015-03-17 Abhay Ashtekar , Frans Pretorius , Fethi M. Ramazanoğlu

We present a general class of non-singular black holes in semi-classical, two-dimensional dilaton gravity, with a focus on a Bardeen-like model. The equations of motion for an evaporating black hole including backreaction are solved…

广义相对论与量子宇宙学 · 物理学 2025-03-06 Jonathan Barenboim , Andrei V. Frolov , Gabor Kunstatter

A semiclassical two-dimensional dilaton-gravity model is obtained by dimensional reduction of the spherically symmetric five-dimensional Einstein equations and used to investigate black hole evaporation. It is shown that this model prevents…

广义相对论与量子宇宙学 · 物理学 2016-08-14 P. F. González-Díaz

The two-dimensional CGHS model provides an interesting toy-model for the study of black hole evaporation. For this model, a quantum effective action, which incorporates Hawking radiation and backreaction, can be explicitly constructed. In…

广义相对论与量子宇宙学 · 物理学 2007-05-23 G. Michaud , R. C. Myers

Callan, Giddings, Harvey and Strominger (CGHS) previously introduced a two-dimensional semiclassical model of gravity coupled to a dilaton and to matter fields. Their model yields a system of field equations which may describe the formation…

广义相对论与量子宇宙学 · 物理学 2010-11-11 Amos Ori

Callan, Giddings, Harvey and Strominger have proposed an interesting two dimensional model theory that allows one to consider black hole evaporation in the semi-classical approximation. They originally hoped the black hole would evaporate…

高能物理 - 理论 · 物理学 2010-11-01 S. W. Hawking

We investigate the thermodynamics and the classical and semiclassical dynamics of two-dimensional ($2\text{D}$), asymptotically flat, nonsingular dilatonic black holes. They are characterized by a de Sitter core, allowing for the smearing…

高能物理 - 理论 · 物理学 2023-07-06 Mariano Cadoni , Mauro Oi , Andrea Pierfrancesco Sanna

Dimensionally reduced spherically symmetric gravity and its generalization, generic 2-D dilaton gravity, provide ideal theoretical laboratories for the study of black hole quantum mechanics and thermodynamics. They are sufficiently simple…

广义相对论与量子宇宙学 · 物理学 2016-12-21 J. Gegenberg , G. Kunstatter

Black hole formation/evaporation in two-dimensional dilaton gravity can be described, in the limit where the number $N$ of matter fields becomes large, by a set of second-order partial differential equations. In this paper we solve these…

高能物理 - 理论 · 物理学 2009-09-17 Tsvi Piran , Andrew Strominger

We study the formation and the evaporation of a spherically symmetric black hole in conformal gravity. From the collapse of a spherically symmetric thin shell of radiation, we find a singularity-free non-rotating black hole. This black hole…

广义相对论与量子宇宙学 · 物理学 2018-09-03 Cosimo Bambi , Leonardo Modesto , Shiladitya Porey , Leslaw Rachwal

We study two-dimensional dilaton gravity coupled to massless scalar fields for static solutions. In addition to the well known black hole, we find another class of solutions that may be understood as that of the black hole in equilibrium…

高能物理 - 理论 · 物理学 2009-10-22 Michael Crescimanno

We numerically calculate the spacetime describing the formation and evaporation of a regular black hole in 2D dilaton gravity. The apparent horizons evaporate smoothly in finite time to form a compact trapped region. We nevertheless see…

广义相对论与量子宇宙学 · 物理学 2024-07-29 Jonathan Barenboim , Andrei V. Frolov , Gabor Kunstatter

We consider a class of two-dimensional dilaton gravity models with linear dilaton vacuum including Callan-Giddings-Harvey-Strominger (CGHS) model as the special case. General thermodynamic properties of black holes in such models are…

高能物理 - 理论 · 物理学 2025-11-11 Maxim Fitkevich

We study the properties of two-dimensional dilatonic black holes from the viewpoint of geometrothermodynamics. We show that the thermodynamic curvature of the equilibrium space vanishes only in the case of a flat spacetime, and it…

广义相对论与量子宇宙学 · 物理学 2015-05-13 Hernando Quevedo , Alberto Sanchez

We study the properties of a completely integrable deformation of the CGHS dilaton gravity model in two dimensions. The solution is shown to represent a singularity free black hole that at large distances asymptoticaly joins to the CGHS…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Aleksandar Bogojevic , Dejan Stojkovic

The formation and semi-classical evaporation of two-dimensional black holes is studied in an exactly solvable model. Above a certain threshold energy flux, collapsing matter forms a singularity inside an apparent horizon. As the black hole…

高能物理 - 理论 · 物理学 2009-10-07 J. Russo , L. Susskind , L. Thorlacius

The thermodynamic second law in the evaporating black hole space-time is examined in the context of two-dimensional dilaton black hole. The dynamical evolution of entropy is investigated by using the analytical perturbation method and the…

广义相对论与量子宇宙学 · 物理学 2009-10-28 Kouichirou Hirata , Yoshi Fujiwara , Jiro Soda
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