Unified radiation formulae for classical and quantum electrodynamics
Unified radiation formulae for classical and quantum electrodynamics
复制标题
经典和量子电动力学的统一辐射公式
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
H. Latal
中科院分区：
文献类型：
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作者：
Thomas Erber;H. Latal
在对电磁辐射过程的经典和量子力学处理之间存在着深刻的概念差异。然而，根据电流的四维傅里叶变换，可以对这两种情况下的辐射光谱和角分布给出形式上的统一描述。我们利用经典电动力学和旋量量子电动力学对基本辐射公式进行了并行推导。此外，这两种导数都允许存在具有折射率的介质。通过对一些具体的辐射问题的计算，说明了这些方法的实际应用。
There are deep conceptual differences between the classical and quantum mechanical treatment of electromagnetic radiation processes. Nevertheless, it is possible to give a formally unified description of the spectral and angular distribution of radiation in both cases in terms of four-dimensional Fourier transforms of currents. We present parallel derivations of the basic radiation formulae utilizing classical electrodynamics as well as spinor quantum electrodynamics. In addition both derivations allow for the presence of a medium with an index of refraction. The practical application of these methods is illustrated by calculations of some specific radiation problems.