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Related papers: Spacetime Structure of an Evaporating Black Hole i…

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Quantum mechanics for matter fields moving in an evaporating black hole spacetime is formulated in fully four-dimensional form according to the principles of generalized quantum theory. The resulting quantum theory cannot be expressed in a…

General Relativity and Quantum Cosmology · Physics 2008-02-03 James B. Hartle

We investigate Hawking radiation in noncommutative spacetime. For a dynamical black hole formed by the collapse of a matter shell, we demonstrate that spacetime noncommutativity modifies the interaction between the radiation field and the…

High Energy Physics - Theory · Physics 2026-04-17 Pei-Ming Ho , Wei-Hsiang Shao , Takuya Yoda

This work investigates the evaporation of black holes immersed in a de Sitter environment, using the Vaidya-de Sitter spacetime. The role of cosmological observers is highlighted in the development and Hayward thermodynamics for…

General Relativity and Quantum Cosmology · Physics 2025-12-08 Thiago de L. Campos , C. Molina , J. A. S. Lima

Emergent modified gravity provides a covariant framework for holonomy effects in models of loop quantum gravity with consistent black hole solutions coupled to a scalar field. Several independent studies of the Hawking thermal distribution…

General Relativity and Quantum Cosmology · Physics 2026-02-13 Idrus Husin Belfaqih , Martin Bojowald , Suddhasattwa Brahma , Erick I. Duque

The standard Hawking formula predicts the complete evaporation of black holes. In this paper, we introduce effects of quantum gravity into fermions' tunneling from Reissner-Nordstrom and Kerr black holes. The quantum gravity effects slow…

General Relativity and Quantum Cosmology · Physics 2014-10-27 Deyou Chen , Houwen Wu , Haitang Yang

We study the evaporation of black holes in space-times with extra dimensions of size L. We show that the luminosity is greatly damped when the horizon becomes smaller than L and black holes born with an initial size smaller than L are…

General Relativity and Quantum Cosmology · Physics 2007-05-23 R. Casadio , B. Harms

The possibility of a nonzero graviton mass has been widely pursued in the literature. In this work we investigate a black hole solution in massive gravity with a degenerate fiducial metric often used in the literature. We find that the end…

General Relativity and Quantum Cosmology · Physics 2020-01-07 B. Eslam Panah , S. H. Hendi , Y. C. Ong

The aim of this paper is to study the black hole evaporation and Hawking radiation for a noncommutative charged Vaidya black hole. For this purpose, we determine spherically symmetric charged Vaidya model and then formulate a noncommutative…

General Relativity and Quantum Cosmology · Physics 2015-06-03 M. Sharif , Wajiha Javed

A simple model for an evaporating non-rotating black hole is considered, employing a global time that does not become singular at the putative horizon. The dynamics of a test particle falling radially towards the center of the black hole is…

General Relativity and Quantum Cosmology · Physics 2019-02-26 Klaus Kassner

A coherent picture of the quantum mechanics of a collapse-formed, evaporating black hole is presented. In a distant frame, semiclassical theory in the zone describes microscopic dynamics of only the "hard modes," the modes that are hard…

High Energy Physics - Theory · Physics 2019-04-17 Yasunori Nomura

This study investigates the evaporation process of a Schwarzschild black hole, incorporating quantum corrections arising from conformal anomaly and vacuum polarization. We demonstrate that these corrections significantly alter the Hawking…

High Energy Physics - Theory · Physics 2026-05-26 Moslem Shafiee , Ahmad Sheykhi

We study possible back-reaction and quantum gravity effects in the evaporation of black holes which could be produced at the LHC through a modification of the Hawking emission. The corrections are phenomenologically taken into account by…

High Energy Physics - Phenomenology · Physics 2008-11-26 Gian Luigi Alberghi , Roberto Casadio , Alessandro Tronconi

We investigate the consequences for the black hole area of introducing fractal structure for the horizon geometry. We create a three-dimensional spherical analogue of a 'Koch Snowflake' using a infinite diminishing hierarchy of touching…

General Relativity and Quantum Cosmology · Physics 2020-08-06 John D. Barrow

Our understanding of black holes changed drastically, when Stephen Hawking discovered their evaporation due to quantum mechanical processes. One core feature of this effect is both its similarity and simultaneous dissimilarity to classical…

General Relativity and Quantum Cosmology · Physics 2019-01-18 Sebastian Schuster

We investigate the possibility that quantum effects responsible for black hole radiation do not allow for hori- zon crossing of gravitationally collapsing matter in a finite time as seen by distant observers. We consider this in the context…

General Relativity and Quantum Cosmology · Physics 2018-10-09 Valentina Baccetti , Robert B. Mann , Daniel R. Terno

It is proposed that the event horizon of a black hole is a quantum phase transition of the vacuum of space-time analogous to the liquid-vapor critical point of a bose fluid. The equations of classical general relativity remain valid…

General Relativity and Quantum Cosmology · Physics 2009-10-31 G. Chapline , E. Hohlfeld , R. B. Laughlin , D. I. Santiago

We review (anti)evaporation phenomena within the context of quantum gravity and extended theories of gravity. The (anti)evaporation effect is an instability of the black hole horizon discovered in many different scenarios: quantum…

General Relativity and Quantum Cosmology · Physics 2017-10-24 Andrea Addazi , Antonino Marciano

We consider spherically symmetric gravity coupled to a spherically symmetric scalar field with a specific coupling which depends on the Areal Radius. Classical collapse is described by the Vaidya solution. The semiclassical Einstein…

General Relativity and Quantum Cosmology · Physics 2024-10-28 Madhavan Varadarajan

We study Hawking radiation on a Vaidya space-time with a gravitational collapse followed by evaporation. The collapsing body is a null thin-shell and the evaporation is induced by a negative energy collapsing null-shell. This mimics the…

General Relativity and Quantum Cosmology · Physics 2022-11-23 Rodrigo Eyheralde

In this work we analyse the backreaction of a quantum field on a spherically symmetric black hole geometry with an inner horizon, i.e. an internal boundary of the trapped region. We start with a black hole background with an inner horizon…

General Relativity and Quantum Cosmology · Physics 2021-05-12 Carlos Barceló , Valentin Boyanov , Raúl Carballo-Rubio , Luis J. Garay
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