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We investigate the evaporation of an uncharged and non-rotating black hole (BH) in vacuum, by taking into account the effects given by the shrinking of the horizon area. These include the back-reaction on the metric and other smaller…

General Relativity and Quantum Cosmology · Physics 2023-05-04 Michael R. R. Good , Alessio Lapponi , Orlando Luongo , Stefano Mancini

The moving mirror model is designed to extract essential features of the black hole formation and the subsequent Hawking radiation by neglecting complication due to a finite curvature. We extend this approach to dynamically treat back…

High Energy Physics - Theory · Physics 2017-02-01 M. Hotta , M. Shino , M. Yoshimura

A charge accelerating in a straight line following the Schwarzschild-Planck moving mirror motion emits thermal radiation for a finite period. Such a mirror motion demonstrates quantum purity and serves as a direct analogy of a black hole…

General Relativity and Quantum Cosmology · Physics 2024-01-17 Evgenii Ievlev , Michael R. R. Good , Eric V. Linder

We find radiation in an infalling frame and present an explicit analytic evidence of the failure of no drama condition by showing that an infalling observer finds an infinite negative energy density at the event horizon. The negative and…

High Energy Physics - Theory · Physics 2014-04-02 Wontae Kim , Edwin J. Son

When a black hole is put in an "empty" space (zero temperature space) on which there is no matter except the matter of the Hawking radiation (Hawking field), then an outgoing energy flow from the black hole into the empty space exists. By…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Hiromi Saida

Radiation from accelerating mirrors in a Minkowski spacetime provides insights into the nature of horizons, black holes, and entanglement entropy. We introduce new, simple, symmetric and analytic moving mirror solutions and study their…

General Relativity and Quantum Cosmology · Physics 2017-12-27 Michael R. R. Good , Eric V. Linder

The analogy between black hole radiation and accelerating mirror radiation (the dynamical Casimir effect) is particularly strong for mirror trajectories giving rise to a constant thermal flux of particles. We present new ways to achieve…

General Relativity and Quantum Cosmology · Physics 2018-03-14 Michael R. R. Good , Eric V. Linder

The radial motion of photons emitted near the horizon of a black hole that evaporates at a steady rate is examined. The space-time of the black hole is generated using non-orthogonal coordinates. It is shown that some photons that are…

General Relativity and Quantum Cosmology · Physics 2008-02-13 Beth A. Brown , James Lindesay

There is a well-known correspondence between the physics of black hole evaporation and that of moving mirrors in QFT. However, most analyses in this subject rely on prescribed mirror trajectories. Here, we study the flat-space dynamics of…

High Energy Physics - Theory · Physics 2023-10-06 Piyush Kumar , Ignacio A. Reyes , Jakob Wintergerst

We investigate the entanglement entropy and the information flow of two-dimensional moving mirrors. Here we point out that various mirror trajectories can help to mimic different candidate resolutions to the information loss paradox…

High Energy Physics - Theory · Physics 2017-07-25 Pisin Chen , Dong-han Yeom

A new solution of a unitary moving mirror is found to produce finite energy and emit thermal radiation despite the absence of an acceleration horizon. In the limit that the mirror approaches the speed of light, the model corresponds to a…

General Relativity and Quantum Cosmology · Physics 2017-03-07 Michael R. R. Good , Khalykbek Yelshibekov , Yen Chin Ong

Erasing a black hole leaves spacetime flat, so light passing through the region before any star forms and after black hole's evaporation shows no time delay, just like a flying mirror that returns to its initial starting point. Quantum…

Quantum Physics · Physics 2025-03-12 Ahsan Mujtaba , Evgenii Ievlev , Matthew J. Gorban , Michael R. R. Good

This article investigates the possibility that Hawking-like quanta emitted by a moving mirror can be purified by late-time vacuum fluctuations, as proposed in Ref. [1]. Our motivation originates from recent discussions in Refs. [2,3] on…

General Relativity and Quantum Cosmology · Physics 2025-12-23 Ivan Agullo , Paula Calizaya Cabrera , Beatriz Elizaga Navascués

We construct analogues for the quantum phenomena of black hole radiation in the context of {\it classical field theory}. Hawking radiation from a (radially) collapsing star is mathematically equivalent to radiation from a mirror moving…

General Relativity and Quantum Cosmology · Physics 2007-05-23 K. Srinivasan , T. Padmanabhan

We point out that conservation of information implies that remnants produced at the end of black hole evaporation should radiate in the low-frequency spectrum. We model this emission and derive properties of the diffuse radiation emitted by…

General Relativity and Quantum Cosmology · Physics 2023-05-05 Sina Kazemian , Mateo Pascual , Carlo Rovelli , Francesca Vidotto

Moving mirrors have been used for a long time as simple models for studying various properties of black hole radiation, such as the thermal spectrum and entanglement entropy. These models are typically constructed to mimic the collapse of a…

General Relativity and Quantum Cosmology · Physics 2024-07-09 Evgenii Ievlev

A black mirror is an accelerated boundary that produces particles in an exact correspondence to an evaporating black hole. We investigate the spectral dynamics of the particle creation during the formation process.

General Relativity and Quantum Cosmology · Physics 2018-07-27 Michael R. R. Good

We study the evaporation of black holes in non-commutative space-times. We do this by calculating the correction to the detector's response function for a moving mirror in terms of the noncommutativity parameter $\Theta$ and then extracting…

General Relativity and Quantum Cosmology · Physics 2008-11-26 R. Casadio , P. H. Cox , B. Harms , O. Micu

The partner mode with respect to a vacuum state for a given mode (like that corresponding to one of the thermal particles emitted by a black hole) is defined and calculated. The partner modes are explicitly calculated for a number of cases,…

General Relativity and Quantum Cosmology · Physics 2015-04-22 M. Hotta , R. Schützhold , W. G. Unruh

Following Hawking, it is usual to mimic the effect of collapse space-time geometry on quantum fields in a semi-classical approximation by imposing suitable boundary conditions at the origin of coordinates, which effectively becomes a moving…

High Energy Physics - Theory · Physics 2007-05-23 Frank Wilczek
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