Observing black holes through superconductors
Observing black holes through superconductors
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DOI：
10.1007/jhep09(2021)138
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发表时间：
2021-06
影响因子：
5.4
通讯作者：
Youka Kaku;Keiju Murata;Jun Tsujimura
中科院分区：
文献类型：
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作者：
Youka Kaku;Keiju Murata;Jun Tsujimura
我们提出了一种在二维球体上观察与超导体对偶的渐近反德西特黑洞的光子环的方法。我们考虑局域时间周期外部电磁场下超导体的电流。在重力方面，体麦克斯韦场从 AdS 边界发出，然后被黑洞衍射。我们根据与场论方面的电流相对应的体麦克斯韦场的渐近数据构建了黑洞的图像。我们将电流分解为耗散部分和非耗散部分，并将耗散部分用于黑洞成像。我们研究带电标量凝聚对图像的影响。我们获得了表明光子环尺寸不连续变化的体图像。
We propose a way to observe the photon ring of the asymptotically anti-de Sitter black hole dual to a superconductor on the two-dimensional sphere. We consider the electric current of the superconductor under the localized time-periodic external electromagnetic field. On the gravity side, the bulk Maxwell field is sent from the AdS boundary and then diffracted by the black hole. We construct the image of the black hole from the asymptotic data of the bulk Maxwell field that corresponds to the electric current on the field theory side. We decompose the electric current into the dissipative and non-dissipative parts and take the dissipative part for the imaging of the black hole. We investigate the effect of the charged scalar condensate on the image. We obtain the bulk images that indicate the discontinuous change of the size of the photon ring.