Electrodynamics—Two Versions and One Problem

• 作者: Bernd Hüttner
• 来源期刊: 现代物理(英文)
• 学科: 数学
• 关键词: Left- and Right-Handed Systems NEGATIVE Refractive iNdex Poynting Vector Maxwell’s EQUATIONS METAMATERIALS DISPERSION Relation
• 年，卷（期）: 2014,（6）
• 页码范围: 449-457
• 页数: 9页
• 分类号: O1

摘要

Based on two versions of Maxwell’s Equations we investigate the Poynting vector, the energy transport and the dispersion relation both for right- and left-handed systems. Furthermore, it is shown that the latter systems are necessarily dispersive in contrast to the former ones. In the end we discuss a published example where the mixing of expressions of both versions of Maxwell’s Equations leads to unphysical conclusions. The presentation demonstrates for students how flexible can be the work with different versions of electrodynamics but also how carefully one has to be thereby.