Charge superradiance on charged BTZ black holes

Data for the figures in the paper "Charge superradiance on charged BTZ black holes", arXiv:2301.01169 [hep-th] 
We study superradiance for a charged scalar field subject to Robin (mixed) boundary conditions on a charged BTZ black hole background. Scalar field modes having a real frequency do not exhibit superradiance, independent of the boundary conditions applied. For scalar field modes with a complex frequency, irrespective of the boundary conditions, no charge superradiance occurs if the black hole is static. We demonstrate the existence of superradiant modes with complex frequencies for a charged and rotating BTZ black hole. Most of the superradiant modes we find satisfy Robin (mixed) boundary conditions, but there are also superradiant modes with complex frequencies satisfying Dirichlet and Neumann boundary conditions. We explore the effect of the black hole and scalar field charge on the outgoing energy flux of these superradiant modes.

本研究数据集为论文《带电 BTZ 黑洞上的电荷超辐射》中图表的数据，该论文发表在 arXiv:2301.01169 [hep-th] 上。我们针对带电 BTZ 黑洞背景下的 Robin（混合）边界条件下的标量场进行了超辐射现象的研究。具有实频的标量场模式不表现出超辐射现象，这与所施加的边界条件无关。对于具有复频的标量场模式，无论边界条件如何，若黑洞处于静态状态，则不会发生电荷超辐射。我们证明了对于带电且旋转的 BTZ 黑洞，存在具有复频的超辐射模式。我们发现的多数超辐射模式满足 Robin（混合）边界条件，但也有满足狄利克雷和诺伊曼边界条件的具有复频的超辐射模式。我们探讨了黑洞和标量场电荷对这些超辐射模式的出射能量通量的影响。