On the Number of Photons in a Classical Electromagnetic Field

被引：3

作者：

Feshchenko, R. M. ^{[1
]}

Vinogradov, A. V. ^{[1
]}

机构：

[1] Russian Acad Sci, Lebedev Phys Inst, Moscow 199991, Russia

来源：

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS | 2018年 / 127卷 / 02期

关键词：

D O I：

10.1134/S1063776118080150

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Relations determining the number of photons in an electromagnetic field are considered from the point of view of a classical electromagnetic field. A relativistically invariant expression is obtained for the number of emitted photons in terms of charges and currents producing the electromagnetic field. Examples are considered for calculating the numbers of photons in the electromagnetic field for the case of the electric dipole radiation field, as well as the field of a finite and spatially restricted electromagnetic pulse.

引用

页码：274 / 278

页数：5