论文标题
轴轴电动力学和轴子Casimir效应
Axion Electrodynamics and the Axionic Casimir Effect
论文作者
论文摘要
给出了轴支电动力学的一般方案，其中假定周围的介质和渗透率的周围介质。然后，作为一种应用，我们给出了由电磁场中电气中性时间依赖性轴$ a = a（t）$产生的电磁电流密度的简单数值估计值。众所周知，在天体物理条件下，假设$ a = a（t）$是常见的。在本文的第三部分中，我们通过假设仅根据一个坐标$ z $来假设轴振幅$ a（z）$来考虑含义。如果将这样的轴向场包含在两个大金属板中，则可以获得轴心产生的特征码以用于分散关系的分裂。这些模式的产生相等，尽管相反，但对板上压力的贡献。我们以简单的一维模型计算分裂效果的大小。
A general scheme for axion electrodynamics is given, in which a surrounding medium of constant permittivity and permeability is assumed. Then, as an application we give simple numerical estimates for the electromagnetic current density produced by the electrically neutral time-dependent axions $a=a(t)$ in a strong magnetic field. As is known, the assumption $a=a(t)$ is common under astrophysical conditions. In the third part of the paper, we consider the implications by assuming instead an axion amplitude $a(z)$ depending on one coordinate $z$ only. If such an axion field is contained within two large metal plates one obtains an axion-generated splitting of the eigenmodes for the dispersion relation. These modes yield equal, though opposite, contributions to the pressure on the plates. We calculate the magnitude of the splitting effect, in a simple one-dimensional model.
