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相关论文: Magnetic Strings in Einstein-Born-Infeld-Dilaton G…

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We get the general static, spherically symmetric solutions of the d-dimensional Einstein-Maxwell-Dilaton theories by dimensionally reducing them to a class of 2-dimensional dilaton gravity theories. By studying the symmetries of the actions…

高能物理 - 理论 · 物理学 2010-11-19 Youngjai Kiem , Dahl Park

In this paper we study black string solutions considering the Lifshitz anisotropic scaling. We have shown that a new class of asymptotically Lifshitz solutions can be generated by an Einstein-Maxwell-Dilaton theory with a cosmological…

广义相对论与量子宇宙学 · 物理学 2024-06-17 L. A. Lessa , J. E. G. Silva , J. Furtado

We investigate string or branelike solutions for four-dimensional vacuum Einstein equations in the presence of cosmological constant. For the case of negative cosmological constant, the Banados-Teitelboim-Zanelli black string is the only…

高能物理 - 理论 · 物理学 2013-05-29 Youngone Lee , Gungwon Kang , Hyeong-Chan Kim , Jungjai Lee

Using on-shell amplitude methods, we derive a rotating black hole solution in a generic theory of Einstein gravity with additional terms cubic in the Riemann tensor. We give an explicit expression for the metric in Einsteinian Cubic Gravity…

高能物理 - 理论 · 物理学 2021-03-25 Daniel J. Burger , William T. Emond , Nathan Moynihan

We present new self-gravitating solutions in five dimensions that describe circular strings, i.e., rings, electrically coupled to a two-form potential (as e.g., fundamental strings do), or to a dual magnetic one-form. The rings are…

高能物理 - 理论 · 物理学 2009-11-10 Roberto Emparan

We present a new class of black hole solutions in Einstein-Maxwell-dilaton gravity in $n \ge 4$ dimensions. These solutions have regular horizons and a singularity only at the origin. Their asymptotic behavior is neither asymptotically flat…

广义相对论与量子宇宙学 · 物理学 2016-08-31 Kevin C. K. Chan , James H. Horne , Robert B. Mann

We present a method to generate static solutions in the Einstein-Maxwell system with a (phantom) dilaton field in $n(\ge 4)$-dimensions, based upon the symmetry of the target space for the nonlinear sigma model. Unlike the conventional…

广义相对论与量子宇宙学 · 物理学 2021-01-13 Masato Nozawa

We obtain the magnetic counterpart of the BTZ solution, i.e., the rotating spacetime of a point source generating a magnetic field in three dimensional Einstein gravity with a negative cosmological constant. The static (non-rotating)…

高能物理 - 理论 · 物理学 2009-11-07 Oscar J. C. Dias , Jose' P. S. Lemos

We present a simple and complete classification of static solutions in the Einstein-Maxwell system with a massless scalar field in arbitrary $n(\ge 3)$ dimensions. We consider spacetimes which correspond to a warped product $M^2 \times…

广义相对论与量子宇宙学 · 物理学 2018-08-07 Hideki Maeda , Cristian Martinez

We present unique solutions of the Seiberg-Witten Monopole Equations in which the U(1) curvature is covariantly constant, the monopole Weyl spinor consists of a single constant component, and the 4-manifold is a product of two Riemann…

高能物理 - 理论 · 物理学 2009-10-31 Cihan Saclioglu

A non-singular, static spherically symmetric solution to the nonsymmetric gravitational and electromagnetic theory field equations is derived, which depends on the four parameters m, l^2, Q and s, where m is the mass, Q is the electric…

广义相对论与量子宇宙学 · 物理学 2008-11-26 N. J. Cornish , J. W. Moffat

We study the gravitational field of the NUT-like source in the linearized (ghost-free) infinite derivative gravity. Such a source is equivalent to the spinning semi-infinite cosmic string with no tension. In general relativity, the…

广义相对论与量子宇宙学 · 物理学 2020-06-04 Ivan Kolar , Anupam Mazumdar

We present a new asymptotically flat, doubly spinning black ring of D = 5 Einstein-Maxwell-dilaton theory with Kaluza-Klein dilaton coupling. Besides the mass and two angular momenta, the solution displays both electric charge and…

高能物理 - 理论 · 物理学 2015-06-05 Jorge V. Rocha , Maria J. Rodriguez , Oscar Varela

In this paper, we are eager to construct a new class of (n+1)-dimensional static magnetic brane solutions in quasi-topological gravity coupled to nonlinear electrodynamics such as exponential and logarithmic forms. The solutions of this…

综合物理 · 物理学 2019-06-19 A. Bazrafshan , F. Naeimipour , M. Ghanaatian , Gh. Forozani , A. Alizadeh

Among various strong-curvature extensions to General Relativity, Einstein-Dilaton-Gauss-Bonnet gravity stands out as the only nontrivial theory containing quadratic curvature corrections while being free from the Ostrogradsky instability to…

广义相对论与量子宇宙学 · 物理学 2018-03-05 Andrea Maselli , Paolo Pani , Leonardo Gualtieri , Valeria Ferrari

A conformal field theory representing a four-dimensional classical solution of heterotic string theory is presented. The low-energy limit of this solution has U(1) electric and magnetic charges, and also nontrivial axion and dilaton fields.…

高能物理 - 理论 · 物理学 2014-11-18 Clifford V. Johnson , Robert C. Myers

We provide a rigorous proof for the existence of homogeneous, isotropic and globally singularity-free cosmological solutions in Einstein-dilaton-Gauss-Bonnet (EdGB) gravity with exponential coupling. While numerical studies suggested such…

偏微分方程分析 · 数学 2025-12-02 Chihang He , Chao Liu

We obtain the general static solutions of the axially symmetric (2+1)-dimensional Einstein-Maxwell-Dilaton theory by dimensionally reducing it to a 2-dimensional dilaton gravity theory. The solutions consist of the magnetically charged…

高能物理 - 理论 · 物理学 2014-11-18 Dahl Park , Jae Kwan Kim

We find new solutions to the five-dimensional Einstein-Maxwell-dilaton theory with cosmological constant where the dilaton field couples to the electromagnetic field as well as to the cosmological term with two different coupling constants.…

广义相对论与量子宇宙学 · 物理学 2018-08-14 A. M. Ghezelbash

We present a family of classical spacetimes in 2+1 dimensions. Such a spacetime is produced by a Nambu-Goto self-gravitating string. Due to the special properties of three-dimensional gravity, the metric is completely described as a…

高能物理 - 理论 · 物理学 2009-10-22 Shahar Ben-Menahem