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The boundary of any observer's spacetime is the boundary that divides what the observer can see from what they cannot see. The boundary of an observer's spacetime in the presence of a black hole is not the true (future event) horizon of the…

General Relativity and Quantum Cosmology · Physics 2018-05-17 Andrew J. S. Hamilton

This paper argues that the effect of Hawking radiation on an astrophysical black hole situated in a realistic cosmological context is not total evaporation of the black hole; rather there will always be a remnant mass. The key point is that…

General Relativity and Quantum Cosmology · Physics 2013-10-22 George F R Ellis

Using standard statistical method, we discover the existence of correlations among Hawking radiations (of tunneled particles) from a black hole. The information carried by such correlations is quantified by mutual information between…

High Energy Physics - Theory · Physics 2011-03-28 Baocheng Zhang , Qing-yu Cai , Li You , M S Zhan

The Hawking effect can be understood as a broad kinematic phenomenon associated with mode behavior near a horizon. While astrophysical black holes produce one specific realization of this radiation, this perspective inspires extensive…

General Relativity and Quantum Cosmology · Physics 2026-03-05 Isaac Bernal , Miguel A. Cortés-Ortiz , David Bermudez

Parikh and Wilczek have shown that Hawking radiation's spectrum cannot be strictly thermal. Such a non-strictly thermal character implies that the spectrum is also not strictly continuous and thus generates a natural correspondence between…

General Relativity and Quantum Cosmology · Physics 2012-10-30 Christian Corda

Bi-metricity and Hawking radiation are exhibit in non-relativistic moving magnetohydrodynamics (MHD) plasma medium generating two Riemannian effective spacetimes. The first metric is a flat metric although the speed of "light" is given by a…

General Relativity and Quantum Cosmology · Physics 2007-05-23 L. C. Garcia de Andrade

We theoretically study the entanglement of Hawking radiation pairs emitted by an analogue black hole. We find that this entanglement can be measured by the experimentally accessible density-density correlation function, vastly simplifying…

General Relativity and Quantum Cosmology · Physics 2015-08-04 Jeff Steinhauer

We study Hawking radiation as a phenomenon of tunneling through event horizons of charged torus-like as well as dilaton black holes involving cosmological constant based on Kerner and Mann's formulation. We obtain tunneling probabilities as…

General Relativity and Quantum Cosmology · Physics 2015-06-18 M. Sharif , Wajiha Javed

In this paper we consider possible analogue Hawking radiation from a normal dielectric and metamaterial composite, having an analogue horizon where the dielectric parameters vanish and change sign upon crossing this transition zone. We…

High Energy Physics - Theory · Physics 2020-05-20 Avijit Bera , Subir Ghosh

We show that the mathematics of Hawking process can be interpreted classically as the Fourier analysis of an exponentially redshifted wave mode which scatters off the black hole and travels to infinity at late times. We use this method to…

General Relativity and Quantum Cosmology · Physics 2007-05-23 M. Nouri-Zonoz , T. Padmanabhan

It is often convenient to view Hawking (black hole) radiation as a process of quantum tunneling. Within this framework, Kraus and Wilczek (KW) have initiated an analytical treatment of black hole emission. Notably, their methodology…

High Energy Physics - Theory · Physics 2009-11-07 A. J. M. Medved

Usually alternative theories of gravity imply deviations from the well-known Kerr space-time, a model of an isolated black hole in General Relativity. In the dominant order, the deformed Kerr metric, free of closed time-like curves outside…

General Relativity and Quantum Cosmology · Physics 2013-02-06 R. A. Konoplya , A. Zhidenko

Black holes are presumed to have an ideal ability to absorb and keep matter. Whatever comes close to the event horizon, a boundary separating the inside region of a black hole from the outside world, inevitably goes in and remains inside…

General Relativity and Quantum Cosmology · Physics 2007-05-23 M. Yu. Kuchiev

In the present paper we explore the Hawking radiation as a quantum tunneling effect from a rotating 5 dimensional Myers-Perry black hole (5D-MPBH) with two independent angular momentum components. First, we investigate the Hawking…

General Relativity and Quantum Cosmology · Physics 2017-05-12 Kimet Jusufi , Ali Övgün

An effective black-hole-like horizon occurs, for electromagnetic waves in matter, at a surface of singular electric and magnetic permeabilities. In a physical dispersive medium this horizon disappears for wave numbers with $k>k_c$.…

General Relativity and Quantum Cosmology · Physics 2009-10-30 B. Reznik

The effect of a black hole state evolution on the Hawking radiation is studied using the final state boundary condition. It is found that theormodynamic or statistical mechanical properties of a black hole depend strongly on the unitary…

High Energy Physics - Theory · Physics 2010-11-10 Doyeol Ahn

This year marks half a century since Stephen Hawking made his greatest scientific discovery by theoretically proving that black holes aint so black, as they behave like hot bodies with an absolute temperature that depends inversely on their…

Popular Physics · Physics 2024-10-17 Jorge Pinochet

We present a Bayesian analysis of the epistemology of analogue experiments with particular reference to Hawking radiation. First, we prove that such experiments can be confirmatory in Bayesian terms based upon appeal to 'universality…

History and Philosophy of Physics · Physics 2019-06-13 Radin Dardashti , Stephan Hartmann , Karim P. Y. Thébault , Eric Winsberg

We consider an approach to the Hawking effect which is free of the asymptotic behavior of the metric or matter fields, and which is not confined to one specific metric configuration. As a result, we find that for a wide class of spacetime…

General Relativity and Quantum Cosmology · Physics 2009-01-27 Ari Peltola

It has been suggested by Giddings that the origin of Hawking radiation in black holes is a quantum atmosphere of near-horizon quantum region by investigating both the total emission rate and the stress tensor of Hawking radiation.…

General Relativity and Quantum Cosmology · Physics 2019-10-21 Myungseok Eune , Wontae Kim