从量子光学理论探讨气体原子的电极化率

Electric Permittivity in Gas Atoms by the Theory of Quantum Optics

普通物理中,时间不变电场对电介质极化时,其电极化强度P=ε0χE。在此基础上,通过引入量子光学理论,研究探讨当外电场是随时间振荡的电磁波时,振荡电磁波对气体物质相互作用的电介质电极化率χ的复数表达式,并给出一些具体性质。使读者对介质在振荡电磁波中产生的极化有较全面的认识和理解,也为新材料在记忆、贮存和压电效应方面的应用研究提供重要的参考价值。

When uniform electric field acts on electric medium, its electric permittivity intensity is P = ε_0χE. Quantum optics is adopted in this paper to provide a complex representative of electric permittivity χ of dielectric when the outside electric field is formed by the electromagnetic wave that vibrates with time, and the vibrating electromagnetic wave interacts with matter.Some con-crete properties are also given.This can enable the readers to understand better the polarization of dielectrics when they are placed into electromagnetic wave.It is also of great reference value for the applicative research of new materials,especially in their memory,storage and piezoelectric effect.