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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…

General Relativity and Quantum Cosmology · Physics 2024-05-01 Thomas Thiemann

Within the mass range of $10^{16}-5\times 10^{18}$ g, primordial black holes (PBHs) persist as plausible candidates for dark matter. Our study involves a reassessment of the constraints on PBHs through a comparative analysis of the cosmic…

Cosmology and Nongalactic Astrophysics · Physics 2024-04-30 Xiu-hui Tan , Jun-qing Xia

This is an extended version of our previous letter hep-th/0602146. In this paper we consider rotating black holes and show that the flux of Hawking radiation can be determined by anomaly cancellation conditions and regularity requirement at…

High Energy Physics - Theory · Physics 2008-11-26 Satoshi Iso , Hiroshi Umetsu , Frank Wilczek

Robinson-Wilczek's recent work, which treats Hawking radiation as a compensating flux to cancel gravitational anomaly at the horizon of a Schwarzschild-type black hole, is extended to study Hawking radiation of rotating black holes in…

High Energy Physics - Theory · Physics 2008-11-26 Qing-Quan Jiang , Shuang-Qing Wu

In an insightful approach, Robinson and Wilczek proposed that Hawking radiation can be obtained as the compensation of a breakdown of general covariance and gauge invariance and the radiation is a black body radiation at Hawking…

High Energy Physics - Theory · Physics 2009-07-22 Soonkeon Nam , Jong-Dae Park

We derive a class of regular black holes from the proper-time renormalization group approach to asymptotically safe gravity. A central challenge is the robustness of physical predictions to the regularization scheme. We address this by…

General Relativity and Quantum Cosmology · Physics 2025-12-22 Alfio Bonanno , Roman A. Konoplya , Giovanni Oglialoro , Andrea Spina

Many early universe theories predict the creation of Primordial Black Holes (PBHs). PBHs could have masses ranging from the Planck mass to 10^5 solar masses or higher depending on the size of the universe at formation. A Black Hole (BH) has…

High Energy Astrophysical Phenomena · Physics 2016-04-27 T. N. Ukwatta , D. R. Stump , J. T. Linnemann , J. H. MacGibbon , S. S. Marinelli , T. Yapici , K. Tollefson

We construct new theories of dilation gravity coupled to conformal matter which are exact $c=26$ conformal field theories and presumably consistent frameworks for discussing black hole physics in two dimensions. They differ from the CGHS…

High Energy Physics - Theory · Physics 2009-10-22 Adel Bilal , Curtis Callan

We model the electromagnetic signatures of massive black hole binaries (MBHBs) with an associated gas component. The method comprises numerical simulations of relativistic binaries and gas coupled with calculations of the physical…

Astrophysics · Physics 2009-11-13 Tamara Bogdanovic , Britton D. Smith , Steinn Sigurdsson , Michael Eracleous

Due to the exponential high gravitational red shift near the event horizon of a black hole, it might appear that the Hawking radiation would be highly sensitive to some unknown high energy physics. To study effects of any unknown physics at…

General Relativity and Quantum Cosmology · Physics 2016-02-17 Peng Wang , Haitang Yang , Shuxuan Ying

These notes introduce the fundamentals of black hole geometry, the thermality of the vacuum, and the Hawking effect, in spacetime and its analogues. Stimulated emission of Hawking radiation, the trans-Planckian question, short wavelength…

General Relativity and Quantum Cosmology · Physics 2015-06-12 Ted Jacobson

The latest results of Higgs boson searches beyond the Standard Model from the ATLAS and CMS experiments are reviewed. This includes searches for additional neutral, charged, and double charged Higgs-like bosons, searches for dark matter…

High Energy Physics - Experiment · Physics 2024-09-24 André Sopczak

Black hole spectroscopy is the proposal to observe multiple quasinormal modes in the ringdown of a binary black hole merger. In addition to the fundamental quadrupolar mode, overtones and higher harmonics may be present and detectable in…

General Relativity and Quantum Cosmology · Physics 2022-02-14 Iara Ota , Cecilia Chirenti

This study examines the properties of a special regular black hole. This analysis investigates the Hawking temperature, remnant radius and mass, as well as the effect of parameter $\xi$ on thermodynamic quantities like entropy, heat…

General Relativity and Quantum Cosmology · Physics 2024-08-12 MY Zhang , F Hosseinifar , H Chen , T Sathiyaraj , H Hassanabadi

Recently, a Hamilton-Jacobi method beyond semiclassical approximation in black hole physics was developed by \emph{Banerjee} and \emph{Majhi}\cite{beyond0}. In this paper, we generalize their analysis of black holes to the case of…

High Energy Physics - Theory · Physics 2014-11-18 Tao Zhu , Ji-Rong Ren

The present paper deals with a reformulation of the derivation of Hawking temperature for static and stationary black holes. In contrast to the conventional approach, where the covariant form of the metrics are used, we use the manifestly…

General Relativity and Quantum Cosmology · Physics 2020-08-24 Avijit Bera , Subir Ghosh , Bibhas Ranjan Majhi

If no new physics signals are found, in the coming years, at the Large Hadron Collider Run-2, an increase in precision of the Higgs couplings measurements will shift the dicussion to the effects of higher order corrections. In Beyond the…

High Energy Physics - Phenomenology · Physics 2017-08-02 Raul Costa , Marco O. P. Sampaio , Rui Santos

The Hawking emissivities for the scalar-, vector-, and tensor-mode bulk gravitons are computed in the full range of the graviton's energy by adopting the analytic continuation numerically when the spacetime background is $(4+n)$-dimensional…

High Energy Physics - Theory · Physics 2008-11-26 D. K. Park

In the string axiverse scenario, primordial black holes (PBHs) can sustain non-negligible spin parameters as they evaporate. We show that tracking both the mass and spin evolution of a PBH in its final hour can yield a purely gravitational…

High Energy Physics - Phenomenology · Physics 2023-12-18 Marco Calzà , João G. Rosa

This resource letter is designed to guide students, educators, and researchers through (some of) the literature on black holes. Both the physics and astrophysics of black holes are discussed. Breadth has been emphasized over depth, and…

Astrophysics · Physics 2009-07-06 Elena Gallo , Don Marolf
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