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The vacuum fluctuations that induce the transitions and the thermalisation of a uniformly accelerated two level atom are studied in detail. Their energy content is revealed through the weak measurement formalism of Aharonov et al. It is…

广义相对论与量子宇宙学 · 物理学 2009-09-25 S. Massar , R. Parentani

We compute the black hole radiation spectrum in the presence of high-frequency dispersion in a large set of situations. In all cases, the spectrum diverges like the inverse of the Killing frequency. When studying the low-frequency spectrum,…

广义相对论与量子宇宙学 · 物理学 2012-06-15 Stefano Finazzi , Renaud Parentani

The tunneling formalism in the Hamilton-Jacobi approach is adopted to study Hawking radiation of massless Dirac particles from spherically symmetric black hole spacetimes incorporating the effects of the generalized uncertainty principle.…

广义相对论与量子宇宙学 · 物理学 2016-01-05 Sunandan Gangopadhyay

Carroll black holes with an associated Carroll temperature were introduced recently. So far, it is unclear if they exhibit a Hawking-like effect. To solve this, we study scalar fields on Carroll black hole backgrounds. Inspired by anomaly…

高能物理 - 理论 · 物理学 2024-08-21 Ankit Aggarwal , Florian Ecker , Daniel Grumiller , Dmitri Vassilevich

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…

高能物理 - 理论 · 物理学 2009-11-07 A. J. M. Medved

Starting with free massless scalar and spinor fields described by a globally N=1 supersymmetric action, infalling on a Schwarzschild black hole, the outgoing Hawking radiation is shown to break supersymmetry spontaneously, exactly as…

高能物理 - 理论 · 物理学 2007-05-23 Parthasarathi Majumdar

Hawking radiation is the proposed thermal black-body radiation of quantum nature emitted from a black hole. One common way to give an account of Hawking radiation is to consider a detector that follows a static trajectory in the vicinity of…

广义相对论与量子宇宙学 · 物理学 2024-04-08 Jerzy Paczos , Luis C. Barbado

A black shell consists of a massive thin spherical shell contracting toward its gravitational radius, coinciding with 't Hooft's brick wall, from the point of view of an external observer far from the shell. This object was conceived by…

广义相对论与量子宇宙学 · 物理学 2020-07-14 Fernando Castro , J. Robel Arenas

Does a dynamical black hole embedded in a cosmological FRW background emit Hawking radiation where a globally defined event horizon does not exist? What are the differences to the Schwarzschild black hole? What about the first law of black…

广义相对论与量子宇宙学 · 物理学 2015-05-27 J. T. Firouzjaee , Reza Mansouri

A white hole (WH) is a time-reversed black hole (BH) solution in General relativity with a spacetime region to which cannot be entered from the outside. Recently they have been proposed as a possible solution to the information loss problem…

广义相对论与量子宇宙学 · 物理学 2018-06-22 Kimet Jusufi

The Hawking radiation spectrum of Kerr-Sen axion-dilaton black holes is derived, in the context of dark spinors tunnelling across the horizon. Since a black hole has a well defined temperature, it should radiate in principle all the…

广义相对论与量子宇宙学 · 物理学 2016-01-14 R. T. Cavalcanti , Roldao da Rocha

We analyze Hawking radiation as perceived by a freely-falling observer and try to draw an inference about the region of origin of the Hawking quanta. To do so, first we calculate the energy density from the stress energy tensor, as…

广义相对论与量子宇宙学 · 物理学 2019-09-27 Ramit Dey , Stefano Liberati , Zahra Mirzaiyan , Daniele Pranzetti

The expectation value of the energy-momentum tensor and the Hawking flux of a scalar field on a Schwarzschild spacetime is calculated using the zeta-function regularisation of the heat kernel. In particular, massless particles are…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Daniel Hofmann

In the conventional scenario, the Hawking radiation is believed to be a tunneling process at the event horizon of the black hole. In the quantum field theoretic approach the Schwinger's mechanism is generally used to give an explanation of…

高能天体物理现象 · 物理学 2015-11-04 Sanchari De , Sutapa Ghosh , Somenath Chakrabarty

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…

高能物理 - 理论 · 物理学 2011-03-28 Baocheng Zhang , Qing-yu Cai , Li You , M S Zhan

The thermal balance between the black hole and surrounding thermal radiation is an interesting topic. The primordial black hole is a type of black hole formed in the early universe, especially during the thermal radiation period of the…

广义相对论与量子宇宙学 · 物理学 2021-12-02 Ruifeng Zheng

Black holes are more than just odd-looking curiosities in gravity theory. They uniquely intertwine the basic principles of General Relativity with those of Quantum Theory. Just by demanding that they nevertheless obey acceptable laws of…

广义相对论与量子宇宙学 · 物理学 2022-11-28 Gerard t Hooft

Event horizons of astrophysical black holes and gravitational analogues have been predicted to excite the quantum vacuum and give rise to the emission of quanta, known as Hawking radiation. We experimentally create such a gravitational…

广义相对论与量子宇宙学 · 物理学 2010-12-23 F. Belgiorno , S. L. Cacciatori , M. Clerici , V. Gorini , G. Ortenzi , L. Rizzi , E. Rubino , V. G. Sala , D. Faccio

Hawking temperature is computed for a large class of black holes (with spherical, toroidal and hyperboloidal topologies) using only laws of classical physics plus the "classical" Heisenberg Uncertainty Principle. This principle is shown to…

广义相对论与量子宇宙学 · 物理学 2020-04-17 Fabio Scardigli

Here we analyze the Hawking radiation detected by an inertial observer in an arbitrary position in a Reissner-Nordstr\"om spacetime, with special emphasis on the asymptotic behavior of the Hawking spectrum as an observer approaches the…

广义相对论与量子宇宙学 · 物理学 2023-04-14 Tyler McMaken , Andrew J. S. Hamilton