Quantum fermion superradiance and vacuum ambiguities on charged black holes

Data for the paper: "Quantum fermion superradiance and vacuum ambiguities on charged black holes", arXiv:2411.00167 [hep-th].Unlike a classical charged bosonic field, a classical charged fermion field on a static charged black hole does not exhibit superradiant scattering. We demonstrate that the quantum analogue of this classical process is however present. We construct a vacuum state for the fermion field which has no incoming particles from past null infinity, but which contains, at future null infinity, a nonthermal flux of particles. This state describes both the discharge and energy loss of the black hole, and we analyze how the interpretation of this phenomenon depends on the ambiguities inherent in defining the quantum vacuum.

本文数据集用于研究论文《带电黑洞上的量子费米子超辐射与真空模糊性》，arXiv:2411.00167 [hep-th]。与经典带电玻色子场不同，在静态带电黑洞上，经典带电费米子场并不表现出超辐射散射现象。然而，我们证明了这一经典过程的量子对应物确实存在。我们构建了一个费米子场的真空态，该态在过去的空时无穷远处没有入射粒子，但在未来的空时无穷远处却包含非热粒子通量。此状态描述了黑洞的放电和能量损失过程，并分析了这一现象的解释如何依赖于量子真空定义中固有的模糊性。