Quantum hair in electrodynamics and gravity
Quantum hair in electrodynamics and gravity
复制标题
DOI：
10.1140/epjp/s13360-023-04201-z
复制
发表时间：
2023-07-05
影响因子：
3.4
通讯作者：
Hsu, Stephen D. H.
中科院分区：
文献类型：
--
作者：
Calmet, Xavier;Hsu, Stephen D. H.
我们利用有效的作用技术证明了电动力学和重力中量子毛发的存在。在电动力学的情况下，我们使用欧拉-海森堡有效作用，而在量子引力的情况下，我们使用唯一有效作用。我们给出了适用于两种理论的这些效应的一般公式，并讨论了它们之间的相似之处和差异。此外，我们提出了黑洞蒸发的QED模拟。带电球外场的自发对产生类似于黑洞的霍金辐射。假设球对称，高斯定律防止外场依赖于球的密度分布。量子修正违反了这些期望，表明量子辐射可以编码关于源的经典禁止信息。
We demonstrate the existence of quantum hair in electrodynamics and gravity using effective action techniques. In the case of electrodynamics we use the Euler-Heisenberg effective action, while in the case of quantum gravity we use the unique effective action. We give a general formulation of these effects which applies to both theories and discuss analogies and differences between them. Furthermore, we present a QED analog to black hole evaporation. Spontaneous pair production in the external field of a ball of charge is analogous to Hawking radiation from black holes. Assuming spherical symmetry, the Gauss law prevents the external field from depending on the density profile of the ball. Quantum corrections violate these expectations, showing that quantum radiation can encode classically forbidden information about the source.