论文标题
双CFT在二射Kerr-sen黑洞上及其测量和超重架
Dual CFT on Dyonic Kerr-Sen black hole and its gauged and ultraspinning counterparts
论文作者
论文摘要
我们证明，爱因斯坦 - 马克斯韦 - 二轴（EMDA）理论中的旋转二聚态黑洞是具有2D共形场理论的全息二。我们首先研究了二聚种kerr-sen黑洞的二元性，并具有非变化的diLaton和轴荷。极端对照kerr-sen时空的近摩恩几何形状具有$ sl（2，r）\ times u（1）$等距，允许使用渐近对称组方法来找到相应的中心电荷。我们发现质量的两个不同分支，与CFT相对应，带有两个不同的中央电荷$ C_L = 12am _+$和$ C_L = 12am _- $。然后在极端熵的两个不同分支中也发现了Bekenstain-Hawking熵与熵之间的确切一致性。此外，我们证明了这种双重性在非零ADS长度的情况下是可靠的。我们表明，二元二氧化碳kerr-sen-ads黑洞及其超叠加对应物的双重性。在这两种情况下，我们从CFT获得了与Bekenstein-Hawking熵完全匹配的预期熵。由于二射和轴支电量与$ 1/m $成正比，因此我们注意到，对于质量，非零广告长度的中央费用可能有两个以上的分支。当我们关闭对照电荷时，轴支电荷消失了，显示了Kerr-Sen-Ads黑洞的结果。此外，当我们假设相等的电磁电荷时，它会在Dilaton电荷消失时恢复结果。最后，我们将二代kerr-sen-ads黑洞及其超叠加对应物的结果与狄奥尼克·克尔·纽曼·阿德斯黑洞的结果和超叠加对应物的结果进行了比较。根据敌对电荷参数的不同，发现极端超级超重旋转的Kerr-sen-ads黑洞并不总是超级强化。
We demonstrate that rotating dyonic black holes in Einstein-Maxwell-Dilaton-Axion (EMDA) theory is holographically dual with 2D conformal field theory. We first investigate the duality on dyonic Kerr-Sen black hole with non-vanishing dilaton and axion charges. The near-horizon geometry of extremal dyonic Kerr-Sen spacetime possesses the $SL(2,R) \times U (1)$ isometry allowing to employ the asymptotic symmetry group method to find the corresponding central charge. We find two different branches of the mass which correspond to CFT with two different central charges $c_L=12am_+$ and $c_L=12am_-$. The exact agreement between the Bekenstain-Hawking entropy and entropy from CFT is then found also in two different branches of extremal entropy. Furthermore, we demonstrate that this duality is robust insofar for non-zero AdS length. We show that the duality holds for both dyonic Kerr-Sen-AdS black hole and its ultraspinning counterpart. In both cases, we obtain the expected entropy from CFT which matches exactly with the Bekenstein-Hawking entropy. Since dyonic and axion charges are proportional to $1/m$, we note that there are possibly more than two branches of the central charge for non-zero AdS length in terms of mass. When we turn off dyonic charge, the axion charge vanishes showing the results of Kerr-Sen-AdS black hole. Moreover, when we assume the equal electromagnetic charges, it recovers the results when the dilaton charge vanishes. In the end, we compare the results of dyonic Kerr-Sen-AdS black hole and its ultraspinning counterpart to those of the dyonic Kerr-Newman-AdS black hole and the ultraspinning counterpart. Depending on the dyonic charge parameters, it is found that extremal ultraspinning dyonic Kerr-Sen-AdS black hole is not always superentropic.
