论文标题
在强电磁场中高度辐射的带电颗粒
Highly Radiating Charged Particles in a Strong Electromagnetic Field
论文作者
论文摘要
我们考虑在强大的外电磁场中高度辐射的超偏见电子。高强度辐射损失和随之而来的$ e^+e^ - $ - 成对的生产出现在量子电动力学框架中，确定了强场中电子的间接质量运算符。我们计算在强恒定场中渐近高能的质量运算符的前学期。我们不使用任何基于该质量运营商与电子质量$ m_e $的比例低的扰动理论，而只使用量子电动力学的原始小参数，即良好的结构常数，$α$。对于光子传播器的极化算子获得了类似的％但不足的结果。这些结果至少部分解决了一个非常长期的争议，源自传统且直接地应用扰动方法，以描述非常强大的电磁场中高度辐射的超偏用电荷颗粒。
We consider highly radiating ultra-relativistic electrons in a strong external electromagnetic field. High intensity radiative losses and consequent $e^+e^-$-pair production, appearing in the frame of quantum electrodynamics, determine indirectly mass operator of electrons in the strong field. We calculate a leading term of the mass operator at asymptotically high energies of electrons in a strong constant field. We do not use any perturbation theory based on a low ratio of this mass operator to the electron mass $m_e$, but only the original small parameter of quantum electrodynamics, the fine structure constant, $α$. The analogous %but less nontrivial result is obtained for the polarization operator for photon propagator. These results resolve at least partially a very long-lasted controversy originating from traditional and straightforward application of perturbative approaches for description of highly radiating ultra-relativistic charged particles in a very strong electromagnetic fields.
