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arXiv 0909.0309gr-qc
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非阿贝尔Lovelock-Born-Infeld拓扑黑洞

Non-Abelian Lovelock-Born-Infeld Topological Black Holes

N. Bostani, N. Farhangkhah

摘要:

在非阿贝尔Born-Infeld拉格朗日量控制的$So(n(n-1)/2-1, 1)$ Yang-Mills场存在的情况下,给出了双曲视界下Einstein引力场的渐近AdS解.我们研究了这些解的性质以及它们在不同维数下的渐近行为。这类解的性质类似于Einstein-Yang-Mills解。但不同之处似乎出现在溶液中的质量,电荷和E-Infeld参数$β$的作用。例如在Einstein-Yang-Mills理论中,非负质量的解不能表示极端黑洞,而在Einstein-Yang-Mills-Born Infeld理论中,非负质量的解可以表示极端黑洞。在高维Einstein-Yang-Mills理论中,非负质量的奇异性总是类空的,而在Einstein-Yang-Mills-Born-Infeld理论中,依赖于参数的选择,我们可以发现类时奇异性。我们还将爱因斯坦的解推广到Gauss-Bonnet和Lovelock引力的情形。结果表明,在$β\to0$和$β\to\infty$极限下,这些解分别代表纯引力和引力与杨-米尔斯场耦合的解.

英文摘要:

We present the asymptotically AdS solutions of the Einstein gravity with hyperbolic horizons in the presence of $So(n(n-1)/2-1, 1)$ Yang-Mills fields governed by the non-Abelian Born-Infeld lagrangian. We investigate the properties of these solutions as well as their asymptotic behavior in varies dimensions. The properties of these kind of solutions are like the Einstein-Yang-Mills solutions. But the differences seems to appear in the role of the mass, charge and born-Infeld parameter $β$, in the solutions. For example in Einstein-Yang-Mills theory the solutions with non-negative mass cannot present an extreme black hole while that of in Einstein-Yang-Mills-Born Infeld theory can. Also the singularities in higher dimensional Einstein-Yang-Mills theory for non-negative mass are always spacelike, while depending on choosing the parameters, we can find timelike singularities in the similar case of Einstein-Yang-Mills-Born-Infeld theory. We also extend the solutions of Einstein to the case of Gauss-Bonnet and Lovelock gravity. It is shown that, these solutions in the limits of $β\to0$, and $β\to\infty$, represent pure gravity and gravity coupled with Yang-Mills fields, respectively.

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