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Black holes emit thermal radiation (Hawking effect). If after black-hole evaporation nothing else were left, an arbitrary initial state would evolve into a thermal state (`information-loss problem'). Here it is argued that the whole…

广义相对论与量子宇宙学 · 物理学 2015-06-25 Claus Kiefer

It has been suggested [1] that the resolution of the information paradox for evaporating black holes is that the holes are surrounded by firewalls, bolts of outgoing radiation that would destroy any infalling observer. Such firewalls would…

高能物理 - 理论 · 物理学 2014-01-23 S. W. Hawking

The question of whether Hawking evaporation violates unitarity, and therefore results in the loss of information, remains unresolved since Hawking's seminal discovery. So far the investigations remain mostly theoretical since it is almost…

广义相对论与量子宇宙学 · 物理学 2017-02-01 Pisin Chen , Gerard Mourou

Our knowledge of dynamical black holes suffers from a lack of observational insight. In an analogue model of gravity, we can design a longitudinally symmetric dynamical acoustic black hole with a moving horizon. In this symmetric spacetime,…

广义相对论与量子宇宙学 · 物理学 2021-06-29 Oindrila Ganguly

Using a combination of analytical and numerical methods, we obtain a two-dimensional spacetime describing a black hole with tachyon hair. The physical ADM mass of the black hole is finite. The presence of tachyon hair increases the Hawking…

高能物理 - 理论 · 物理学 2009-09-25 Alan Kostelecky , Malcolm Perry

For more than 30 years the discovery that black holes radiate like black bodies of specific temperature has triggered a multitude of puzzling questions concerning their nature and the fate of information that goes down the black hole during…

广义相对论与量子宇宙学 · 物理学 2012-06-28 Nikolaos D. Pappas

We study dynamical condensation process in a holographic superconductor model with anisotropy. The time-dependent numerical solution is constructed for the Einstein-Maxwell-dilaton theory with complex scalar in asymptotic AdS spacetime. The…

高能物理 - 理论 · 物理学 2014-09-17 Xiaojian Bai , Bum-Hoon Lee , Miok Park , Khimphun Sunly

It is generally believed that, when matter collapses to form a black hole, the complete information about the initial state of the matter cannot be retrieved by future asymptotic observers, through local measurements. This is contrary to…

广义相对论与量子宇宙学 · 物理学 2016-08-31 Kinjalk Lochan , Sumanta Chakraborty , T. Padmanabhan

The theory of coronal evaporation predicts the formation of an inner hole in the cool thin accretion disk for mass accretion rates below a certain value (~ 1/50 of the Eddington mass accretion rate) and the sudden disappearance of this hole…

天体物理学 · 物理学 2016-08-30 F. Meyer , B. F. Liu , E. Meyer-Hofmeister

We consider a gravitating system of vanishing cosmological constant consisting of an electromagnetic field and a scalar field coupled to the Einstein tensor. A Reissner-Nordstr\"om black hole undergoes a second-order phase transition to a…

广义相对论与量子宇宙学 · 物理学 2015-06-03 Theodoros Kolyvaris , George Koutsoumbas , Eleftherios Papantonopoulos , George Siopsis

The Hawking radiation of BTZ black hole is investigated based on generalized uncertainty principle effect by using Hamilton-Jacobi method and Dirac equation. The tunneling probability and the Hawking temperature of the spin-1/2 particles of…

综合物理 · 物理学 2020-04-15 T. Ibungochouba Singh , Y. Kenedy Meitei , I. Ablu Meitei

The horizon structure and thermodynamics of hairy spherically symmetric black holes generated by the gravitational decoupling method are carefully investigated. The temperature and heat capacity of the black hole is determined, as well as…

广义相对论与量子宇宙学 · 物理学 2022-07-11 Rogerio T. Cavalcanti , Kelvin dos S. Alves , Julio M. Hoff da Silva

We investigate the thermodynamics of a general class of exact 4-dimensional asymptotically Anti-de Sitter hairy black hole solutions and show that, for a fixed temperature, there are small and large hairy black holes similar to the…

高能物理 - 理论 · 物理学 2015-06-23 Andres Anabalon , Dumitru Astefanesei , David Choque

In both classical and quantum world, information cannot appear or disappear. This fundamental principle, however, is questioned for a black hole, by the acclaimed "information loss paradox". Based on the conservation laws of energy, charge,…

广义相对论与量子宇宙学 · 物理学 2013-08-13 Baocheng Zhang , Qing-yu Cai , Ming-sheng Zhan , Li You

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…

高能物理 - 理论 · 物理学 2026-05-26 Moslem Shafiee , Ahmad Sheykhi

In a seminal work, Hawking showed that natural states for free quantum matter fields on classical spacetimes that solve the spherically symmetric vacuum Einstein equations are KMS states of non-vanishing temperature. Although Hawking's…

广义相对论与量子宇宙学 · 物理学 2024-05-01 Thomas Thiemann

We study the dynamical and thermodynamic evolution of a Schwarzschild black hole in Modified Gravity (MOG) under a scalar gravitational wave breathing mode. The time-dependent apparent horizon reveals that both the scalar strain velocity…

广义相对论与量子宇宙学 · 物理学 2026-04-07 Nikko John Leo S. Lobos , Emmanuel T. Rodulfo

We study the Hawking radiation of black holes by considering the canonical typicality. For the universe consisting of black holes and their outer part, we directly obtain a non-thermal radiation spectrum of an arbitrary black hole from its…

量子物理 · 物理学 2018-06-21 Yu-Han Ma , Qing-Yu Cai , Hui Dong , Chang-Pu Sun

Inspired by string theory, Heisenberg's uncertainty principle can be generalized to include the photon-electron gravitational interaction, which leads to the Generalized Uncertainty Principle (GUP). Although GUP considers gravitational…

广义相对论与量子宇宙学 · 物理学 2022-04-19 Sara Azizi , Sareh Eslamzadeh , Javad T. Firouzjaee , Kourosh Nozari

Three-dimensional Einstein gravity with negative cosmological constant admits stationary black holes that are not necessarily spherically symmetric. We propose boundary conditions for the near horizon region of these black holes that lead…

高能物理 - 理论 · 物理学 2016-05-25 Hamid Afshar , Stephane Detournay , Daniel Grumiller , Wout Merbis , Alfredo Perez , David Tempo , Ricardo Troncoso