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相关论文: Phase analyses for compact, charged boson stars an…

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We present a class of charged black hole solutions in an ($n+2)$-dimensional massive gravity with a negative cosmological constant, and study thermodynamics and phase structure of the black hole solutions both in grand canonical ensemble…

高能物理 - 理论 · 物理学 2015-01-27 Rong-Gen Cai , Ya-Peng Hu , Qi-Yuan Pan , Yun-Long Zhang

Under some conditions, light boson fields grow exponentially around a rotating black hole, called the superradiance instability. We discuss effects of nonlinear interactions of the boson on the instability. In particular, we focus on the…

高能物理 - 唯象学 · 物理学 2020-02-19 Hajime Fukuda , Kazunori Nakayama

We construct exact black hole solutions to Einstein gravity with nonlinear electrodynamic field. In these solutions, there are in general four parameters. They are physical mass, electric charge, cosmological constant and the coupling…

广义相对论与量子宇宙学 · 物理学 2020-05-27 Shuang Yu , Changjun Gao

We consider the class of d=4 CFTs at finite temperature and chemical potential that are holographically described within D=5 Einstein-Maxwell theory with a Chern-Simons term. The high temperature phase, which is spatially homogeneous and…

高能物理 - 理论 · 物理学 2013-05-30 Aristomenis Donos , Jerome P. Gauntlett

Polymer models have been used to describe non-singular quantum black holes, where the classical singularity is replaced by a transition from a black hole to a white hole. In a previous letter, in the context of a uni-parametric model with…

广义相对论与量子宇宙学 · 物理学 2025-04-15 I. P. R. Baranov , H. A. Borges , F. C. Sobrinho , S. Carneiro

It was reported that Kerr-Newman black holes can support linear charged scalar fields in their exterior regions. These stationary massive charged scalar fields can form bound states, which are called stationary scalar clouds. In this paper,…

广义相对论与量子宇宙学 · 物理学 2016-10-10 Canisius Bernard

We study the effect of electric charge in compact stars assuming that the charge distribution is proportional to the mass density. The pressure and the density of the matter inside the stars are large, and the gravitational field is…

天体物理学 · 物理学 2009-11-10 Subharthi Ray , Aquino L. Espindola , Manuel Malheiro , Jose' P. S. Lemos , Vilson T. Zanchin

Motivated by recent progresses in the field of massive gravity, the paper at hand investigates the thermodynamical structure of black holes with three specific generalizations: i) Gauss-Bonnet gravity which is motivated from string theory…

高能物理 - 理论 · 物理学 2018-05-01 S. H. Hendi , B. Eslam Panah , S. Panahiyan

We consider the inspiral of black holes carrying U(1) charge that is not electromagnetic, but corresponds to some dark sector. In the weak-field, low-velocity regime, the components follow Keplerian orbits. We investigate how the orbital…

广义相对论与量子宇宙学 · 物理学 2021-03-23 Øyvind Christiansen , Jose Beltrán Jiménez , David F. Mota

In this paper, we investigate the dynamical formation and evolution of 2 + 1-dimensional charged black holes. We numerically study dynamical collapses of charged matter fields in an anti de Sitter background and note the formation of black…

广义相对论与量子宇宙学 · 物理学 2015-05-28 Dong-il Hwang , Hongbin Kim , Dong-han Yeom

We present a generalization of the black hole solution with spherical symmetry already known in the literature for $N$-dimensional $F(R)$ gravity with a conformally invariant Maxwell field and constant scalar curvature $R$. This solution…

广义相对论与量子宇宙学 · 物理学 2022-04-21 Ernesto F. Eiroa , Griselda Figueroa-Aguirre

We review the latest progress in understanding the phase structure of static and neutral Kaluza-Klein black holes, i.e. static and neutral solutions of pure gravity with an event horizon that asymptote to a d-dimensional Minkowski-space…

高能物理 - 理论 · 物理学 2007-05-23 T. Harmark , N. A. Obers

In this paper, we present the static charged solutions of quartic quasitopological gravity in the presence of a nonlinear electromagnetic field. Two branches of these solutions present black holes with one or two horizons or a naked…

广义相对论与量子宇宙学 · 物理学 2015-03-31 Mohammad Ghanaatian , Afsaneh Bazrafshan

We find a very large set of smooth horizonless geometries that have the same charges and angular momenta as the five-dimensional, maximally-spinning, three-charge, BPS black hole (J^2 = Q^3). Our solutions are constructed using a…

高能物理 - 理论 · 物理学 2008-11-26 Iosif Bena , Chih-Wei Wang , Nicholas P. Warner

We study angularly excited as well as interacting non-topological solitons, so-called Q-balls and their gravitating counterparts, so-called boson stars in 3+1 dimensions. Q-balls and boson stars carry a non-vanishing Noether charge and…

高能物理 - 唯象学 · 物理学 2010-04-15 Yves Brihaye , Betti Hartmann

We study the linear response of four dimensional magnetized black holes and regular topological stars arising from dimensional compactification of Einstein-Maxwell theory in five dimensions. We consider both radial and nonradial…

广义相对论与量子宇宙学 · 物理学 2024-10-03 Alexandru Dima , Marco Melis , Paolo Pani

Compact bosonic field configurations, or boson stars, are promising dark matter candidates which have been invoked as an alternative description for the supermassive compact objects in active galactic nuclei. Boson stars can be comparable…

广义相对论与量子宇宙学 · 物理学 2013-09-26 Caio F. B. Macedo , Paolo Pani , Vitor Cardoso , Luís C. B. Crispino

We study exact, analytic, static, spherically symmetric, four-dimensional solutions of minimally coupled Einstein-scalar gravity, sourced by a scalar field whose profile has the form of the sine-Gordon soliton. We present a horizonless,…

广义相对论与量子宇宙学 · 物理学 2018-06-20 Edgardo Franzin , Mariano Cadoni , Matteo Tuveri

Boson stars are often described as macroscopic Bose-Einstein condensates. By accommodating large numbers of bosons in the same quantum state, they materialize macroscopically the intangible probability density cloud of a single particle in…

广义相对论与量子宇宙学 · 物理学 2020-12-23 C. A. R. Herdeiro , J. Kunz , I. Perapechka , E. Radu , Ya. Shnir

We investigate the phase structure of a charged AdS dilaton black hole in the extended phase space which takes the cosmological constant, i.e. the AdS-$\Lambda$ parameter as pressures. Through both thermal ensemble and quasinormal mode…

高能物理 - 理论 · 物理学 2018-02-07 Ai-chen Li , Han-qing Shi , Ding-fang Zeng