论文标题
Euler-Heisenberg波在磁性背景下传播
Euler-Heisenberg waves propagating in a magnetic background
论文作者
论文摘要
我们通过有效的度量方法得出了描述通过非常均匀的磁性或电背景传播的电磁波的Euler-Heisenberg溶液。我们首先探讨了磁性背景的情况：由于波和背景之间的相互作用，出现了双折射和纵向电场成分。两个相速度取决于外部磁场的强度和波的极化。相位速度可以放慢速度，直至$ b/b _ {\ rm cr} << 1 $的字段的数十分之一。当波通过均匀的电场传播时，进行类似的研究。然后，我们考虑背景通过Lorentz增强而运动的情况，然后对磁性流动介质进行建模。我们确定了这种运动如何影响电磁波传播的速度，在这种情况下，相位速度均取决于磁力背景以及增强的方向和速度。
We derive the Euler-Heisenberg solutions that describe electromagnetic waves propagating through very intense uniform magnetic or electric background, with the effective metric approach. We first explore the case of a magnetic background: as a result of the interaction between the wave and the background there is birefringence and a longitudinal electric field component arises. The two phase velocities depend on the intensity of the external magnetic field and on the polarization of the wave; phase velocities can be slowed down up to the order of hundred thousandths for fields $B/B_{\rm cr} << 1$. The analogous study is done when the wave propagates through a uniform electric field. We then consider the situation when the background is in movement by means of a Lorentz boost, modeling then a magnetized flowing medium. We determined how this motion affects the speed of propagation of the electromagnetic wave, in this case the phase velocities depend on both the magnetic background and the direction and velocity of the boost.
