arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1504.07529hep-thgr-qc
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超自旋极限与超熵黑洞

Ultraspinning limits and super-entropic black holes

Robie A. Hennigar, David Kubiznak, Robert B. Mann, Nathan Musoke

摘要:

利用新的超自旋极限,我们构造了一类新的具有非紧事件视界和有限视界面积的黑洞,并研究了它们的热力学性质。我们的超自旋极限可以被理解为一个简单的生成技术,包括三个步骤:i)将已知的旋转AdS黑洞解转换到一个特殊的坐标系,该坐标系在无穷远处旋转(在给定的2-平面内)ii)将这种旋转提升到光速iii)将相应的方位角方向紧致化。在这样做的时候,我们定性地改变了时空的结构,因为它不再可能回到一个在无穷远处不旋转的坐标系。所得到的黑洞具有非紧视界,其拓扑为具有两个穿刺的球。其中一些黑洞的熵超过了逆等周不等式所隐含的最大界,这类黑洞是超熵的。

英文摘要:

By employing the new ultraspinning limit we construct novel classes of black holes with non-compact event horizons and finite horizon area and study their thermodynamics. Our ultraspinning limit can be understood as a simple generating technique that consists of three steps: i) transforming the known rotating AdS black hole solution to a special coordinate system that rotates (in a given 2-plane) at infinity ii) boosting this rotation to the speed of light iii) compactifying the corresponding azimuthal direction. In so doing we qualitatively change the structure of the spacetime since it is no longer possible to return to a frame that does not rotate at infinity. The obtained black holes have non-compact horizons with topology of a sphere with two punctures. The entropy of some of these exceeds the maximal bound implied by the reverse isoperimetric inequality, such black holes are super-entropic.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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