论文标题
在培养基和外场的光子伪尺寸粒子混合
On the photon-pseudoscalar particle mixing in media and external fields
论文作者
论文摘要
在这项工作中，我研究了在存在外部磁场和伪级场的情况下，光子与伪层颗粒的混合和反之亦然。我在文献中首次求解电磁场的运动方程，并在具有任意方向的恒定磁场的存在下，与真空中田间传播的方向相对于恒定磁场。此外，我还精确地求解了磁化等离子体/气体中的运动方程，以相对于外部磁场垂直传播。通过找到运动方程式的精确溶液，我发现在不同情况下，光子的过渡效率到伪尺度颗粒的过渡效率的精确表达式。过渡效率的表达概括并纠正文献中先前通过近似WKB方法求解运动方程的方法。如果在相对于外部磁场的场传播方向不是垂直的，那么即使在磁化真空中也会产生电磁场的纵向状态。纵向电场状态的出现可用于对伪尺度颗粒（例如轴）和/或轴突样颗粒进行实验室搜索。
In this work, I study the mixing of photons with pseudoscalar particles and vice-versa in the presence of an external magnetic field and a pseudoscalar field. I solve exactly for the first time in the literature the equations of motion of the electromagnetic field coupled with a pseudoscalar field in the presence of a constant magnetic field with arbitrary direction with respect to the direction of propagation of the fields in vacuum. In addition, I also solve exactly the equations of motion in a magnetized plasma/gas for perpendicular propagation with respect to the external magnetic field. By finding exact solutions to the equations of motion, I find exact expressions for the transition efficiencies of photons into pseudoscalar particles in different situations. The expressions of the transition efficiencies generalize and correct those previously found in the literature by using approximate WKB methods on solving the equations of motion. In the case when the direction of propagation of fields with respect to the external magnetic field is not perpendicular, a longitudinal state of the electromagnetic field is generated even in a magnetized vacuum. The appearance of the longitudinal electric field state could be used for laboratory searches of pseudoscalar particles such as the axion and/or axion-like particles.
