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We compute the exact retarded Green's functions in thermal $CFT$s with chemical potential and angular momenta using holography respectively. We consider the field equations satisfied by the quasi-normal modes in both charged and rotating…

High Energy Physics - Theory · Physics 2023-02-27 Atanu Bhatta , Taniya Mandal

Hawking's radiation effect of Klein-Gordon scalar field, Dirac particles and Maxwell's electromagnetic field in the non-stationary rotating de Sitter cosmological space-time is investigated by using a method of generalized tortoise…

General Relativity and Quantum Cosmology · Physics 2011-04-28 Ng. Ibohal , T. Ibungochouba

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…

General Relativity and Quantum Cosmology · Physics 2016-01-14 R. T. Cavalcanti , Roldao da Rocha

We express the AdS-Schwarzschild black-hole configuration in coordinates such that the boundary metric is of the FLRW type. We review how this construction can be used in order to calculate the stress-energy tensor of the dual CFT on the…

High Energy Physics - Theory · Physics 2010-03-19 N. Tetradis

We study massive scalar fields and Dirac fields propagating in a five dimensional dilatonic black hole background. We expose that for both fields the physics can be describe by a two dimensional theory, near the horizon. Then, in this…

General Relativity and Quantum Cosmology · Physics 2015-05-27 Ramón Becar , P. A. González

Recent research shows that Hawking radiation can be treated as a quantum tunnelling process, and Hawking temperature of Dirac particles across the horizon of a black hole can be correctly recovered via fermions tunnelling method. In this…

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

We study the quantum corrections to the four-dimensional Schwarzschild Anti de Sitter black hole using effective field theory approach. We compute the quantum correction to Hawking temperature upto order $\mathcal{O}{(G^{2})}$ for a…

General Relativity and Quantum Cosmology · Physics 2023-03-07 Prosenjit Paul

We study the hidden conformal symmetry of the extremal black holes. We introduce a new set of conformal coordinates to write the $SL(2,R)$ generators. We find that the Laplacian of the scalar field in many extremal black holes could be…

High Energy Physics - Theory · Physics 2010-12-09 Bin Chen , Jiang Long , Jia-ju Zhang

In this work, we investigate the Hawking radiation in higher dimensional Reissner-Nordstr\"om black holes as received by an observer, resides at infinity. The frequency-dependent transmission rates, which deform the thermal radiation…

General Relativity and Quantum Cosmology · Physics 2021-07-21 Kai Lin , Wei-Liang Qian , Xilong Fan , Bin Wang , Elcio Abdalla

Hawking radiation has thermal spectrum corresponding to the temperature ${T}_{H}={(8{\pi}M)}^{-1}$, where $M$ is the mass (energy) of the black hole. Corrections to the Hawking radiation spectrum were discovered by Kraus and Wilczek (1995)…

General Physics · Physics 2018-10-18 Gregory Ryskin

The AdS/CFT correspondence relates certain strongly coupled CFTs with large effective central charge $c_\text{eff}$ to semi-classical gravitational theories with AdS asymptotics. We describe recent progress in understanding gravity duals…

High Energy Physics - Theory · Physics 2014-03-05 Donald Marolf , Mukund Rangamani , Toby Wiseman

Motivated by recent experimental efforts, we study a black hole analog induced by the propagation of a strong laser pulse in a nonlinear dielectric medium. Based on the Hopfield model (one pair of Sellmeier coefficients), we perform an…

General Relativity and Quantum Cosmology · Physics 2016-05-09 Malte F. Linder , Ralf Schützhold , William G. Unruh

We study a six-dimensional vector-tensor gravitation theory compactified to M_4 x S^2. Here, static spherically-symmetric solutions to the field equations of the theory are investigated. We examine the case that the magnetic charge of the…

General Relativity and Quantum Cosmology · Physics 2023-06-27 Kiyoshi Shiraishi

While recent progress in the black hole information problem has shown that the entropy of Hawking radiation follows a unitary Page curve, the quantum state of Hawking radiation prior the Page time is still treated as purely thermal,…

High Energy Physics - Theory · Physics 2023-05-31 Jonah Kudler-Flam , Yuya Kusuki

We show that there exists a holographic 2D CFT description of a Kerr-Bolt-AdS-dS spacetime. We first consider the wave equation of a massless scalar field propagating in extremal Kerr-Bolt-AdS-dS spacetimes and find in the "near region",…

High Energy Physics - Theory · Physics 2011-03-31 B. Chen , A. M. Ghezelbash , V. Kamali , M. R. Setare

Hawking radiation is one essential property of quantum black hole. It results in the information loss paradox, and give important clue to the unification of quantum mechanics and general relativity. In the previous works, the boundary…

General Relativity and Quantum Cosmology · Physics 2023-03-24 Jingbo Wang

Majorana fermions are a fascinating medium for discovering new phases of matter. However, the standard analytical tools are very limited in probing the non-perturbative aspects of interacting Majoranas in more than one dimensions. Here, we…

Strongly Correlated Electrons · Physics 2020-03-06 Paolo Maraner , Jiannis K. Pachos , Giandomenico Palumbo

In this second part of our two-series on extracting the Hawking temperature of dynamical black holes, we focus into spacetimes that are conformal transformations of static spacetimes. Our previous investigation builds upon the Unruh-Hawking…

General Relativity and Quantum Cosmology · Physics 2024-08-08 Pravin Kumar Dahal , Swayamsiddha Maharana

We study the low frequency absorption cross section of spherically symmetric nonextremal d-dimensional black holes. In the presence of alpha' corrections, this quantity must have an explicit dependence on the Hawking temperature of the form…

High Energy Physics - Theory · Physics 2015-05-21 Filipe Moura

Sign and magnitude of the thermodynamic curvature provides empirical information about the nature of microstructures of a general thermodynamic system. For charged black holes in AdS, thermodynamic curvature is positive for large charge or…

High Energy Physics - Theory · Physics 2023-08-07 Aditya Singh , Poulami Mukherjee , Chandrasekhar Bhamidipati