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相关论文: Stability Analysis of Charged Rotating Black Ring

200 篇论文

We study Coulomb blockade (CB) oscillations in the thermodynamics of a metallic grain which is connected to a lead by a tunneling contact with a large conductance $g_0$ in a wide temperature range, $E_Cg_0^4 e^{-g_0/2}<T<E_C$, where $E_C$…

介观与纳米尺度物理 · 物理学 2009-11-07 I. S. Beloborodov , A. V. Andreev , A. I. Larkin

In this paper, we analyze the Hawking radiation phenomenon for types of Banados-Teitelboim-Zanelli-like (BTZ-like) black holes. For this purpose, using the Hamilton-Jacobi method, we consider semi-classical WKB approximation to calculate…

广义相对论与量子宇宙学 · 物理学 2019-10-18 Wajiha Javed , Riasat Ali , Rimsha Babar , Ali Övgün

The aim of this paper is to study the quantum tunneling process for charged vector particles through the horizons of black holes by using Proca equation. For this purpose, we have consider a pair of charged accelerating and rotating black…

综合物理 · 物理学 2017-06-22 Wajiha Javed , G. Abbas , Riasat Ali

In this letter, we present the first study of Hawking radiation as a tunneling process within the framework of non-commutative (NC) gauge theory of gravity. First, we reconstruct the non-commutative Schwarzschild black hole (NC SBH) within…

广义相对论与量子宇宙学 · 物理学 2023-11-28 Abdellah Touati , Slimane Zaim

In this paper, we study different cases of the charged rotating BTZ black hole with reference to their horizons. For the existence of these cases conditions on mass, charge and angular momentum of the black hole are obtained. It is also…

广义相对论与量子宇宙学 · 物理学 2014-11-21 M. Akbar , Azad A. Siddiqui

Theories for new particle and early-Universe physics abound with pseudo-Nambu-Goldstone fields that arise when global symmetries are spontaneously broken. The coupling of these fields to the Chern-Simons term of electromagnetism may give…

宇宙学与河外天体物理 · 物理学 2011-08-22 Robert R. Caldwell , Vera Gluscevic , Marc Kamionkowski

We study the stability of a collisionless, relativistic, finite-strength, cylindrical layer of charged particles in free space by solving the linearized Vlasov-Maxwell equations and compute the power of the emitted electromagnetic waves.…

天体物理学 · 物理学 2007-05-23 Bjoern S. Schmekel , Richard V. E. Lovelace , Ira M. Wasserman

We generalize the quasilocal definition of the stress energy tensor of Einstein gravity to the case of third order Lovelock gravity, by introducing the surface terms that make the action well-defined. We also introduce the boundary…

高能物理 - 理论 · 物理学 2008-11-26 M. H. Dehghani , R. B. Mann

In this paper we consider a metric of a rotating black hole in conformal gravity. We calculate the thermodynamical quantities for this rotating black hole including Hawking temperature and entropy in four dimensional space-time, as we…

广义相对论与量子宇宙学 · 物理学 2024-04-23 Negin Kamvar , Reza Saffari , Saheb Soroushfar

We perform stability analysis of an accretion disc around a stellar mass black hole. The cooling of the accretion flow due to bremsstrahlung and synchrotron radiation processes are considered. The solutions with shock are perturbed at the…

天体物理学 · 物理学 2007-05-23 Sivakumar G. Manickam

We consider the regular black holes solution with cosmic strings(RBHCS) in the rotation parameter by assuming the Newman-Janis method. After this, we study thermodynamical property (i.e., Hawking temperature $T_H$) for the RBHCS in the…

广义相对论与量子宇宙学 · 物理学 2022-07-22 Riasat Ali , Rimsha Babar , Muhammad Asgher , Xia Tie-Cheng

A model of nonlinear electrodynamics is proposed and investigated in general relativity. We consider the magnetic black hole and find a regular solution which gives corrections into the Reissner-Nordstr\"{o}m solution. At…

综合物理 · 物理学 2018-03-07 S. I. Kruglov

The structure of the hot downstream region below a radiative accretion shock, such as that of an accreting compact object, may oscillate due to a global thermal instability. The oscillatory behaviour depends on the functional forms of the…

天体物理学 · 物理学 2009-10-31 Curtis J. Saxton , Kinwah Wu

We investigate the thermodynamic and holographic properties of charged and rotating quantum black holes in a doubly holographic braneworld setup. These quantum black holes are derived from the anti-de Sitter C-metric and are exact solutions…

高能物理 - 理论 · 物理学 2025-07-10 Dyuman Bhattacharya , Robie A. Hennigar , Robert B. Mann , Ming Zhang

The transfer of weakly bound KRb molecules from levels just below the dissociation threshold into the vibrational ground state with shaped laser pulses is studied. Optimal control theory is employed to calculate the pulses. The complexity…

原子物理 · 物理学 2011-04-15 Mamadou Ndong , Christiane P. Koch

In this paper, we study the tunneling of charged fermions from the stationary axially symmetric black holes using the generalized uncertainty principle (GUP) via Wentzel, Kramers, and Brillouin (WKB) method. The emission rate of the charged…

综合物理 · 物理学 2019-05-07 Muhammad Rizwan , Muhammad Zubair Ali , Ali Övgün

The conditions for the occurrence of pronounced magnetoelectric bistabilities in the resonant tunneling through a ferromagnetic quantum well are theoretically investigated. The bistability appears due to the mutual feedback of the carriers…

其他凝聚态物理 · 物理学 2008-10-22 Christian Ertler

This study explores the emission of massive charged spin-1 particles from the background of Bardeen regular spacetime by the semi-classical method used to study the Hawking radiation spectrum. We employed the Hamilton-Jacobi method and WKB…

广义相对论与量子宇宙学 · 物理学 2021-10-22 Areeba Merriam , M. Zain Sarwar

The temperature gradient of microwave background radiation (CMBR) is calculated in the Self Consistent Model. An expected values for Hubble parameter have been presented in two different cases. In the first case the temperature is treated…

广义相对论与量子宇宙学 · 物理学 2017-01-18 A. B. Morcos

In this paper, by applying the deformed dispersion relation in quantum gravity theory, we study the correction of fermions' tunneling radiation from non-stationary symmetric black holes. Firstly, the motion equation of fermions is modified…

高能物理 - 理论 · 物理学 2019-07-26 Jin Pu , Kai Lin , Xiao-Tao Zu , Shu-Zheng Yang