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arXiv 1712.04751hep-thgr-qc
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NUT极端旋转黑洞上的CFT

CFT duals on extremal rotating NUT black hole

Muhammad Fitrah Alfian Rangga Sakti, Agus Suroso, Freddy Permana Zen

摘要:

在几个假设条件下,研究了由Plebauski-Demiauskiski解得到的Kerr-Newman-NUT黑洞解.利用最初为极值Kerr黑洞提出的扰动Kerr/CFT对应,研究了该黑洞微观熵的起源.近视界极值Kerr-Newman-NUT黑洞的等距性表明,渐近对称群可以用来计算维拉索罗代数的中心荷.此外,通过假设Frolov-Thorne真空,可以得到共形温度。然后利用Cardy公式得到与Bekenstein-Hawking熵相匹配的微观熵。我们还利用Cardy公式求出了熵的对数修正。然后在极限$ a \rightarrow 0 $下,恢复了Reissner-Nordström-NUT的极值解,并通过纤维坐标的增强得到了五维(5D)解.对该黑洞进行第二次对偶连续傅里叶变换,得到熵。最后,微观熵仍然符合5D黑洞解的面积律。因此,极值Reissner-Nordström-NUT解与CFT是全息对偶的。

英文摘要:

We investigate the Kerr-Newman-NUT black hole solution obtained from Plebański-Demiański solutions with several assumptions. The origin of the microscopic entropy of this black hole is investigated using the conjectured Kerr/CFT correspondence which is originally proposed for extremal Kerr black holes. The isometry of the near-horizon extremal Kerr-Newman-NUT black hole shows that the asymptotic symmetry group may be implemented to compute the central charge of the Virasoro algebra. Furthermore, by assuming Frolov-Thorne vacuum, the conformal temperatures can be obtained. Then by using the Cardy formula, the microscopic entropy is gained which matches the Bekenstein-Hawking entropy. We also employ Cardy prescription to find the logarithmic correction of the entropy. Then at limit $ a \rightarrow 0 $, the extremal Reissner-Nordström-NUT solution is recovered and by enhancing with the fibered coordinate we find the five-dimensional (5D) solution. The second dual CFT is applied to this black hole to gain the entropy. Finally, the microscopic entropy is still in agreement with the area law of 5D black hole solution. Hence, the extremal Reissner-Nordström-NUT solution is holographically dual to the CFT.

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