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Black holes, dark energy, and the Higgs field are all currently established, exciting, and mysterious, each in its own way. Cosmological data show that dark energy may evolve with time. The electroweak phase transition during stellar…

宇宙学与河外天体物理 · 物理学 2025-02-11 Steve P. Ahlen , James W. Rohlf , Gregory Tarlé

We study the thermodynamical properties of electrically charged black hole solutions of a nonlinear electrodynamics theory defined by a power p of the Maxwell invariant, which is coupled to Einstein gravity in four and higher spacetime…

高能物理 - 理论 · 物理学 2013-05-29 Hernan A. Gonzalez , Mokhtar Hassaine , Cristian Martinez

We study the possible existence of charged and neutral black holes in the Bergmann-Wagoner class of scalar-tensor theories (STT) of gravity in four dimensions. The existence of black holes is shown for anomalous versions of these theories,…

广义相对论与量子宇宙学 · 物理学 2009-10-31 K. A. Bronnikov , C. P. Constantinidis , R. L. Evangelista , J. C. Fabris

The purpose of this paper is to present a number of proposals about the interior structure of a rotating black hole that is accreting slowly, but in an arbitrary time- and space-dependent fashion. The proposals could potentially be tested…

广义相对论与量子宇宙学 · 物理学 2011-08-22 Andrew J. S. Hamilton

We investigate $4D$ Einstein-Gauss-bonnet gravity coupled to exponential electrodynamics in AdS background and found a static, spherically symmetric exact black hole solution. The horizon structure of black hole is discussed. Treating the…

广义相对论与量子宇宙学 · 物理学 2023-02-14 Prosenjit Paul

In this work, we present a new construction of black hole solutions in non-commutative gauge theory by applying the Seiberg-Witten map directly to interaction potentials before solving Einstein's equations. This approach provides a…

高能物理 - 理论 · 物理学 2026-05-25 Abdellah Touati

We analyse the problem of negative modes of the Euclidean section of the Reissner-Nordstr\"om black hole in four dimensions. We find analytically that a negative mode disappears when the specific heat at constant charge becomes positive.…

广义相对论与量子宇宙学 · 物理学 2009-07-30 Ricardo Monteiro , Jorge E. Santos

We investigate the distribution of gravitational energy on the spacetime of a Schwarzschild black hole immersed in a cosmic magnetic field. This is done in the context of the {\it Teleparallel Equivalent of General Relativity}, which is an…

广义相对论与量子宇宙学 · 物理学 2012-11-06 K. H. C. Castello-Branco , J. F. da Rocha-Neto

We present a microscopic statistical-mechanical foundation for interpreting the horizon area of a scrambling black hole as coherent information, equivalently negative conditional quantum entropy, in Hawking's pair-creation picture. We…

高能物理 - 理论 · 物理学 2026-05-26 Koji Azuma

We study thermodynamical structure of Einstein black holes in the presence of power Maxwell invariant nonlinear electrodynamics for two different cases. The behavior of the temperature and conditions regarding the stability of these black…

高能物理 - 理论 · 物理学 2017-06-13 S. H. Hendi , B. Eslam Panah , S. Panahiyan , M. S. Talezadeh

We have computed the thermodynamic properties of a rotating black holes in the presence of cold dark matter. The dependence of temperaure, Gibbs free energy, specific heat on the horizon radius have been studied for various values of…

广义相对论与量子宇宙学 · 物理学 2024-09-10 Swapan Kumar Majhi

Tidal charged spherically symmetric vacuum brane black holes are characterized by their mass m and tidal charge q, an imprint of the 5-dimensional Weyl curvature. For q>0 they are formally identical to the Reissner-Nordstr\"om black hole of…

广义相对论与量子宇宙学 · 物理学 2011-05-10 László Árpád Gergely , Narit Pidokrajt , Sergei Winitzki

We study the nature of the inner Cauchy horizon of a Reissner-Nordstr\"om black hole in a quantum context by means of the horizon wave-function obtained from modelling the electrically charged source as a Gaussian wave-function. Our main…

广义相对论与量子宇宙学 · 物理学 2015-04-29 Roberto Casadio , Octavian Micu , Dejan Stojkovic

The thermodynamics of black holes (BHs) within the Einstein Maxwell Scalar (EMS) framework, incorporating Barrow entropy and its logarithmic corrections to analyze quantum gravity effects is investigated here. A static, spherically…

广义相对论与量子宇宙学 · 物理学 2025-07-08 Ritabrata Biswas , Satyajit Pal

A static spherically symmetric solution is obtained and examined in the framework of Einstein-power-Yang-Mills-dilaton theory. To derive this exact solution a dilaton potential $V(\Phi)$ is taken into account. Thermodynamics of the black…

高能物理 - 理论 · 物理学 2021-01-01 M. M. Stetsko

A reformulation of the calculation of the semi-classical energy-momentum tensor on a Schwarzschild background, the Bousso covariant entropy bound, and the ER=EPR conjecture of Maldacena and Susskind taken together suggest a scenario for the…

广义相对论与量子宇宙学 · 物理学 2014-06-17 James M. Bardeen

We study how the entanglement entropy of the Hawking radiation derived using island recipe for the Reissner-Nordstr\"om black hole behaves as the black hole mass decreases. A general answer to the question essentially depends not only on…

高能物理 - 理论 · 物理学 2022-10-19 I. Aref'eva , T. Rusalev , I. Volovich

Starting from a quantization relation for primordial extremal black holes with electric and magnetic charges, it is shown that their entropy is quantized. Furthermore the energy levels spacing for such black holes is derived as a function…

高能物理 - 理论 · 物理学 2015-06-15 Gerardo Cristofano , Giuseppe Maiella , Cosimo Stornaiolo

We study causality constraints on black hole thermodynamics in nonlinear electrodynamics, where the Lagrangian is taken to be an arbitrary function of the electromagnetic field strength tensor. By requiring the absence of superluminal…

高能物理 - 理论 · 物理学 2025-05-30 Yoshihiko Abe , Maxime Médevielle , Toshifumi Noumi , Kaho Yoshimura

The continuum of holographic dual gravitational charges is recovered out of the discrete spectrum of $U(N)$ $\mathcal{N}=4$ SYM on $\mathbb{R}\times S^3\,$. In such a limit, the free energy of the free gauge theory is computed up to…

高能物理 - 理论 · 物理学 2025-09-03 Alejandro Cabo-Bizet