论文标题
受幂律电动力学启发的DILATON重力中的新黑洞溶液
A New Black Hole Solution In Dilaton Gravity Inspired By Power-Law Electrodynamics
论文作者
论文摘要
在这项工作中,在Dilaton重力中获得了新的一类缓慢旋转的黑洞溶液,DILATON场与非线性Maxwell耦合。背景时空是固定的轴对称几何形状。在这里,已经表明,Dilaton电位可以以概括的三种liouville型电势的形式写成。在存在这三种liouville型diLaton电位的情况下,所获得的溶液的渐近行为既不是平坦的,也不是(a)ds。电场的一个奇怪的属性是,当$ r \ rightarrow 0 $ $ \ r \ rightarrow \ infty $时,电场将变为零。我们在热力学研究中显示了热力学第一定律的有效性。通过使用热容量和吉布斯自由能来研究局部和全球热力学稳定性。同样,在相应的图中显示了边界,相变和霍金 - 页面过渡点以及黑洞稳定性的范围。从这些图表中,我们可以说,Dilaton场的存在使解决方案在原点附近具有局部稳定,并消失了解决方案的全球稳定性。在最终的热力学分析中,我们获得了解决方案的Smarr公式。我们将证明Dilaton Field的存在在Smarr公式中带来了一个新术语。同样,我们发现Dilaton场使黑洞(AD)质量减小S(熵)的每个固定值。
In this work, a new class of slowly rotating black hole solutions in dilaton gravity has been obtained where dilaton field is coupled with nonlinear Maxwell invariant. The background space-time is a stationary axisymmetric geometry. Here, it has been shown that the dilaton potential can be written in the form of generalized three Liouville-type potentials. In the presence of this three Liouville-type dilaton potential, the asymptotic behavior of the obtained solutions are neither flat nor (A)dS. One bizarre property of the electric field is that the electric field goes to zero when $r\rightarrow 0$ and diverges at $r\rightarrow\infty$. We show the validity of the first law of thermodynamics in thermodynamic investigations. The local and global thermodynamical stability are investigated through the use of heat capacity and Gibbs free-energy. Also, the bounded, phase transition and the Hawking-Page phase transition points as well as the ranges of black hole stability have been shown in the corresponding diagrams. From these diagrams, we can say that the presence of the dilaton field makes the solutions to be locally stable near origin and vanishes the global stability of our solutions. In final thermodynamics analysis, we obtain the Smarr formula for our solution. We will show that the presence of dilaton field brings a new term in the Smarr formula. Also, we find that the dilaton field makes the black hole(AdS) mass to decrease for every fix values of S(entropy).