关于纵向电流在电荷辐射系统中的作用
Nikita A Nemkov1,2, Vassili A Fedotov3
1Russian Quantum Center, Skolkovo, Moscow, Russia, 121205.
Scientific reports
|July 19, 2024
概括
电荷密度的时间变化与通过电流密度的辐射有关. 这项研究阐明了纵向电流虽然不发射,但如何需要横向电流,从而使电磁波发射成为可能.
科学领域:
- 电磁主义 电磁主义
- 凝聚物质物理学 凝聚物质物理学
- 理论物理 理论物理
背景情况:
- 连续性方程链接电荷密度时间导数到电流密度.
- 从电荷密度获得的纵向电流通常被认为是非辐射的.
- 这就提出了有关电荷密度变化与电磁辐射相关性的问题.
研究的目的:
- 解决电荷密度变化和电磁辐射之间的明显矛盾.
- 阐明纵向电流在产生辐射中的作用.
- 探索对凝聚物质和多极膨胀的影响.
主要方法:
- 对连续性方程和电流密度元件的分析.
- 电荷和电流分布的理论研究.
- 检查来自动态系统的电磁波辐射.
主要成果:
- 纵向电流,即使是由有限的电荷产生的,也必然是非定位的.
- 这种移位强制存在横向电流,这些电流负责辐射.
- 纵向和横向电流之间的相互作用影响多极扩张.
结论:
- 电荷密度的时间变化与辐射有关,这是由于诱导的横流引起的.
- 了解电流转移是理解电磁辐射的关键.
- 这项工作澄清了电磁和多极辐射理论中的基本概念.
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