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We obtain a black hole solution in the Einstein-Gauss-Bonnet theory for the string cloud model in a five dimensional spacetime. We analyze the event horizons and naked singularities. Later, we compute the Hawking temperature…

高能物理 - 理论 · 物理学 2016-08-14 Estanislao Herscovich , Martín G. Richarte

The semi-classical derivation of Hawking radiation for axially symmetric, stationary spacetimes with a Killing horizon is examined following the recent quasi-classical tunneling analysis and a simple formula is found for the inverse Hawking…

高能物理 - 理论 · 物理学 2008-09-17 Terry Pilling

In the present paper we explore the Hawking radiation as a quantum tunneling effect from a rotating 5 dimensional Myers-Perry black hole (5D-MPBH) with two independent angular momentum components. First, we investigate the Hawking…

广义相对论与量子宇宙学 · 物理学 2017-05-12 Kimet Jusufi , Ali Övgün

In this work, we investigate the properties of Hawking radiation induced by the quantum atmosphere beyond the event horizon, by considering two detectors in Schwarzschild spacetime with the parameterized Hartle-Hawking temperature.…

广义相对论与量子宇宙学 · 物理学 2025-06-16 Shuai Zhang , Li-Juan Li , Xue-Ke Song , Liu Ye , Dong Wang

We explore the method of Robinson and Wilczek for deriving the Hawking temperature of a black hole. In this method, the Hawking radiation restores general covariance in an effective theory of near-horizon physics which otherwise exhibits a…

高能物理 - 理论 · 物理学 2008-11-26 Saurya Das , Sean P. Robinson , Elias C. Vagenas

Applying a dimensional reduction technique and a coordinates transformation approach, we deduce the Kerr-Newman space-time into a Painlev\'{e}-like form, and obtain its corresponding event horizon and the Hawking radiation temperature. We…

广义相对论与量子宇宙学 · 物理学 2015-06-18 X. G. Lan , D. Y. Chen , L. F. Wei

The generalized uncertainty relation is expected to be an essential element in a theory of quantum gravity. In this work, we examine its effect on the Hawking radiation of a Schwarzschild black hole formed from collapse by incorporating a…

广义相对论与量子宇宙学 · 物理学 2024-01-03 Tin-Long Chau , Pei-Ming Ho , Hikaru Kawai , Wei-Hsiang Shao , Cheng-Tsung Wang

Hawking radiation is an important quantum phenomenon of black hole, which is closely related to the existence of event horizon of black hole. The cosmological event horizon of de Sitter space is also of the Hawking radiation with thermal…

高能物理 - 理论 · 物理学 2009-07-24 Rong-Gen Cai , Li-Ming Cao , Ya-Peng Hu

We examine Hawking radiation for a (2+1)-dimensional spinning black hole and study the interesting possibility of tunneling through the event horizon which acts as a classically forbidden barrier. Our finding shows it to be much lower than…

广义相对论与量子宇宙学 · 物理学 2021-11-19 Sauvik Sen

We show that for the thermal spectrum of Hawking radiation black hole's information loss paradox may still be present, even if including the entanglement information stored in the entangled Minkowski vacuum. And to avoid this inconsistency,…

高能物理 - 理论 · 物理学 2015-11-17 Yu-Lei Feng , Yi-Xin Chen

It has been widely believed that the Hawking temperature for a black hole is $uniquely$ determined by its metric and $positive$. But, I find that this does ``not'' seem to be true in the recently discovered black holes which include the…

高能物理 - 理论 · 物理学 2008-11-26 Mu-in Park

This paper discusses the gravitational scattering of a straight, infinitely long test cosmic string by a black hole. We present numerical results that probe the two-dimensional parameter space of impact parameter and initial velocity and…

广义相对论与量子宇宙学 · 物理学 2009-10-31 Jean-Pierre De Villiers , Valeri Frolov

In this article, the thermodynamics of regular black holes with a cosmic string passing through it is studied. We will observe that the string has no effect on the temperature as well as the relation between entropy S and horizon area A.

广义相对论与量子宇宙学 · 物理学 2018-09-20 Ceren H. Bayraktar

Hawking radiation from the black hole in Horava-Lifshitz gravity is discussed by a reformulation of the tunneling method given in \cite{Banerjee:2008sn}. Using a density matrix technique the radiation spectrum is derived which is identical…

高能物理 - 理论 · 物理学 2010-03-18 Bibhas Ranjan Majhi

A numerical simulation of fluid flows in a Laval nozzle is performed to observe formations of acoustic black holes and the classical counterpart to Hawking radiation under a realistic setting of the laboratory experiment. We determined the…

广义相对论与量子宇宙学 · 物理学 2009-11-11 H. Furuhashi , Y. Nambu , H. Saida

Hawking effect of Dirac particles in a variable-mass Kerr space-time is investigated by using method of the generalized tortoise coordinate transformation. The location and the temperature of event horizon of the non-stationary Kerr black…

广义相对论与量子宇宙学 · 物理学 2017-02-08 Wu Shuang-Qing , Cai Xu

We develop the quantization of a macroscopic string which extends radially from a Schwarzschild black hole. The Hawking process excites a thermal bath of string modes that causes the black hole to lose mass. The resulting typical string…

高能物理 - 理论 · 物理学 2013-11-13 A. Lawrence , E. Martinec

The spacetime inside the white hole is like an anisotropic cosmological background with the past singularity playing the role of a big bang singularity. The scale factor along the extended spatial direction is contracting while the scale…

广义相对论与量子宇宙学 · 物理学 2022-12-21 Hassan Firouzjahi , Alireza Talebian

Parikh and Wilczek have shown that Hawking radiation's spectrum cannot be strictly thermal. Such a non-strictly thermal character implies that the spectrum is also not strictly continuous and thus generates a natural correspondence between…

广义相对论与量子宇宙学 · 物理学 2012-10-30 Christian Corda

We derive the solution for a spherically symmetric string cloud configuration in a d-dimensional spacetime in the framework of f(R) theories of gravity. We also analyze some thermodynamic properties of the joint black hole - cloud of…

广义相对论与量子宇宙学 · 物理学 2018-06-12 J. P. Morais Graça , Iarley P. Lobo , I. G. Salako