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We calculate the quantum radiation from the five dimensional charged rotating black rings by demanding the radiation to eliminate the possible anomalies on the horizons. It is shown that the temperature, energy flux and angular-momentum…

高能物理 - 理论 · 物理学 2008-11-26 Umpei Miyamoto , Keiju Murata

We study the effects of noncommutative spaces on the horizon, the area spectrum and Hawking temperature of a Schwarzschild black hole. The results show deviations from the usual horizon, area spectrum and the Hawking temperature. The…

高能物理 - 理论 · 物理学 2009-11-11 Forough Nasseri

In transforming from Schwarzschild to Euclidean Rindler coordinates the Schwarzschild time transforms to a periodic angle. As is well-known, this allows one to introduce the Hawking temperature and is an origin of black hole thermodynamics.…

广义相对论与量子宇宙学 · 物理学 2009-09-01 Kostyantyn Ropotenko

We consider black holes generically sourced by quantum matter described by regular wavefunctions. This allows for integrable effective energy densities and the removal of Cauchy horizons in spherically symmetric configurations. Moreover, we…

广义相对论与量子宇宙学 · 物理学 2023-05-31 Roberto Casadio , Andrea Giusti , Jorge Ovalle

From appropriate expressions for effective actions, the Hawking radiation from charged black holes is derived, using only covariant boundary conditions at the event horizon. The connection of our approach with the Unruh vacuum and the…

高能物理 - 理论 · 物理学 2008-11-26 Rabin Banerjee , Shailesh Kulkarni

Black holes are extreme manifestations of general relativity, so one might hope that exotic quantum effects would be amplified in their vicinities, perhaps providing clues to quantum gravity. The commonly accepted treatment of quantum…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Adam D. Helfer

The many low energy modes near a black hole horizon give the thermal atmosphere a divergent entropy which becomes of order $A/4G$ with a Planck scale cut-off. However, Sorkin has given a Newtonian argument for 3+1 Schwarzschild black holes…

高能物理 - 理论 · 物理学 2008-11-26 Donald Marolf

We review recent work on the Hawking radiation of rotating brane black holes, as may be produced at the LHC. We outline the methodology for calculating the fluxes of particles, energy and angular momentum by spin-0, spin-1/2 and spin-1…

高能物理 - 理论 · 物理学 2007-08-28 Elizabeth Winstanley

We study a massless scalar field propagating in the background of a five-dimensional rotating black hole. We showed that in the Myers-Perry metric describing such a black hole the massless field equation allows the separation of variables.…

广义相对论与量子宇宙学 · 物理学 2009-11-07 Valeri Frolov , Dejan Stojkovic

We revisit Hawking's black hole radiation derivation, including the quantum state of the initial matter forming the black hole. We investigate how non-vacuum initial quantum states, at the past of a black hole geometry, influence the black…

广义相对论与量子宇宙学 · 物理学 2025-04-28 Ali Akil , Riccardo Falcone , Nicetu Tibau Vidal , Giulio Chiribella

The Cosmic Blackbody Background Radiation pervades the entire Universe, and so falls into every astrophysical black hole. The blueshift of the infalling photons, measured by a static observer, is infinite at the event horizon. This raises a…

广义相对论与量子宇宙学 · 物理学 2014-12-16 Maciek Wielgus , George F. R. Ellis , Frederic H. Vincent , Marek A. Abramowicz

Nonextreme black hole in a cavity within the framework of the canonical or grand canonical ensemble can approach the extreme limit with a finite temperature measured on a boundary located at a finite proper distance from the horizon. In…

广义相对论与量子宇宙学 · 物理学 2009-10-30 O. B. Zaslavskii

We calculate the quantum radiation power of black holes which are asymptotic to the Einstein-de Sitter universe at spatial and null infinities. We consider two limiting mass accretion scenarios, no accretion and significant accretion. We…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Hiromi Saida , Tomohiro Harada , Hideki Maeda

We investigate the effect of quantum correction on Hawking radiation for Schwarzschild black holes. We consider Hawking temperature and entropy to order G^2 and find that the area law of black holes should be modified. We think of Hawking…

广义相对论与量子宇宙学 · 物理学 2022-01-04 Yang Liu

In this work we study the spectral dimensionality of spacetime around a radiating Schwarzschild black hole using a recently introduced formalism of quantum gravity, where the alterations of the gravitational field produced by the radiation…

广义相对论与量子宇宙学 · 物理学 2025-05-07 Mauricio Bellini , Juan Ignacio Musmarra , Pablo Alejandro Sanchez , Alan Sebastian Morales

We establish a state of stopping the Hawking radiation by quantum Schwarzschild black hole in the framework of quasi-classical thermal quantization for particles behind the horizon. The mechanism of absorption and radiation by the black…

广义相对论与量子宇宙学 · 物理学 2007-05-23 V. V. Kiselev

We review and extend recent progress on the quantum description of near-extremal black holes in the language of effective quantum field theory. With black holes in Einstein-Maxwell theory as the main example, we derive the Schwarzian low…

高能物理 - 理论 · 物理学 2021-08-24 Sangmin Choi , Finn Larsen

We calculate the emission of gravitational waves, gravitons, photons and neutrinos from a perturbed Schwarzschild blackhole (BH). The perturbation can be due to either classical or quantum sources and therefore the injected energy can be…

高能物理 - 理论 · 物理学 2019-12-11 Ram Brustein , Yotam Sherf

The scalar radiation emitted by a source in geodesic circular orbit around a regular Bardeen black hole is analyzed. We use the quantum field theory in curved spacetime framework to obtain the emitted power of radiation by computing the…

广义相对论与量子宇宙学 · 物理学 2019-07-17 R. P. Bernar , L. C. B. Crispino

In the context of the dynamics and stability of black holes in modified theories of gravity, we derive the Teukolsky equations for massless fields of all spins in general spherically-symmetric and static metrics. We then compute the…

广义相对论与量子宇宙学 · 物理学 2021-05-10 Alexandre Arbey , Jérémy Auffinger , Marc Geiller , Etera R. Livine , Francesco Sartini