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相关论文: A New Class of Exact Solutions in Einstein-Maxwell…

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We construct new classes of exact cosmological solutions to five dimensional Einstein-Maxwell-dilaton theory with two coupling constants for the dilaton-Maxwell term and dilaton-cosmological constant term. All the solutions are…

广义相对论与量子宇宙学 · 物理学 2015-04-08 A. M. Ghezelbash

We present novel classes of non-stationary solutions to the five-dimensional generalized Einstein-Maxwell-dilaton theory with cosmological constant, in which the Maxwell's filed and the cosmological constant couple to the dilaton field. In…

高能物理 - 理论 · 物理学 2019-05-29 Michael Butler , A. Masoud Ghezelbash

We construct new classes of cosmological solution to the five dimensional Einstein-Maxwell-dilaton theory, that are non-stationary and almost conformally regular everywhere. The base geometry for the solutions is the four-dimensional…

广义相对论与量子宇宙学 · 物理学 2021-07-21 Bardia H. Fahim , Masoud Ghezelbash

We construct new classes of the dynamical black hole solutions in five or higher dimensional Einstein-Maxwell theory, coupled to a dilaton field, in the presence of arbitrary cosmological constant. The dilaton field interacts non-trivially…

广义相对论与量子宇宙学 · 物理学 2025-01-15 B. H. Fahim , A. M. Ghezelbash

We examine the effective field equations that are obtained from the axi-dilaton gravity action with a second order Euler-Poincare term and a cosmological constant in all higher dimensions. We solve these equations for five-dimensional…

广义相对论与量子宇宙学 · 物理学 2008-11-26 A. N. Aliev , H. Cebeci , T. Dereli

We present a general solution of the coupled Einstein-Maxwell field equations (without the source charges and currents) in three spacetime dimensions. We also admit any value of the cosmological constant. The whole family of such…

广义相对论与量子宇宙学 · 物理学 2022-08-23 Jiri Podolsky , Matus Papajcik

We construct two classes of exact solutions to six and higher dimensional Einstein-Maxwell theory in which the metric functions can be written as convolution-like integrals of two special functions. The solutions are regular everywhere and…

高能物理 - 理论 · 物理学 2014-11-05 A. M. Ghezelbash

We find and analyse solutions of Einstein's equations in arbitrary d dimensions and in the presence of a scalar field with a Liouville potential coupled to a Maxwell field. We consider spacetimes of cylindrical symmetry or again subspaces…

广义相对论与量子宇宙学 · 物理学 2010-06-29 Christos Charmousis , Blaise Goutéraux , Jiro Soda

A 5-dimensional Einstein spacetime with (non)vanishing cosmological constant is analyzed in detail. The metric is in close analogy with the 4-dimensional massless uncharged C-metric in many aspects. The coordinate system, horizons and…

广义相对论与量子宇宙学 · 物理学 2014-11-21 Wei Xu , Liu Zhao , Bin Zhu

We present several new exact solutions in five and higher dimensional Einstein-Maxwell theory by embedding the Nutku instanton. The metric functions for the five-dimensional solutions depend only on a radial coordinate and on two spatial…

广义相对论与量子宇宙学 · 物理学 2017-10-04 A. M. Ghezelbash , V. Kumar

We construct non-stationary exact solutions to five dimensional Einstein-Maxwell-Chern-Simons theory with positive cosmological constant. The solutions are based on four-dimensional Atiyah-Hitchin space. In asymptotic regions, the solutions…

高能物理 - 理论 · 物理学 2010-04-06 A. M. Ghezelbash

We consider the background cosmological solutions in the $6D$ (six-dimensional) model with one time and five space coordinates. The theory of our interest has the action composed by the Einstein term, cosmological constant, and two…

广义相对论与量子宇宙学 · 物理学 2025-10-03 Daniel Muller , Sergey G. Rubin , Ilya L. Shapiro , Alexey Toporensky

We study black hole solutions in the Einstein gravity with Gauss-Bonnet term, the dilaton and a positive "cosmological constant" in various dimensions. Physically meaningful black holes with a positive cosmological term are obtained only…

高能物理 - 理论 · 物理学 2014-11-20 Nobuyoshi Ohta , Takashi Torii

In this article, we construct explicit analytical exact solutions to the six and higher dimensional Einstein-Maxwell theory. In all solutions, a subspace of the metric is the Eguchi-Hanson space where the metric functions are completely…

广义相对论与量子宇宙学 · 物理学 2017-09-28 A. M. Ghezelbash , V. Kumar

We show a general method to solve 2+1 dimensional dilatonic Maxwell-Einstein equation with a positive or negative cosmological constant. All the physical solutions are listed with assumptions that they are static, rotationally symmetric,…

高能物理 - 理论 · 物理学 2009-10-30 Takao Koikawa , Takuya Maki , Atsushi Nakamula

Classes of exact static solutions in four-dimensional Einstein-Maxwell-Dilaton gravity are found. Besides of the well-known solutions previously found in the literature, new solutions are presented.It's shown that spherically symmetric…

广义相对论与量子宇宙学 · 物理学 2009-10-31 S. Yazadjiev

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 construct infinite-dimensional families of non-singular static space times, solutions of the vacuum Einstein-Maxwell equations with a negative cosmological constant. The families include an infinite-dimensional family of solutions with…

微分几何 · 数学 2017-04-05 Piotr Chrusciel , Erwann Delay

We obtain an exact solution for the Einstein's equations with cosmological constant coupled to a scalar, static particle in static, "spherically" symmetric background in 2+1 dimensions.

广义相对论与量子宇宙学 · 物理学 2009-11-11 Durmus Daghan , Ayse H. Bilge

We construct and study general static, spherically symmetric, magnetically charged solutions in Einstein-Maxwell-dilaton gravity in four dimensions. That is, taking Einstein gravity coupled to a ${\rm U}(1)$ gauge field and a massless…

高能物理 - 理论 · 物理学 2023-03-24 Achilleas P. Porfyriadis , Grant N. Remmen
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