Spherical tensor approach to multipole expansions. I. Electrostatic interactions

作者：C.G. Gray · 发表于：Canadian Journal of Physics · 年份：1976 · DOI：10.1139/p76-057 · 被引用次数：73 · 研究领域：Particle accelerators and beam dynamics、Particle Accelerators and Free-Electron Lasers、Plasma Diagnostics and Applications

Using spherical harmonic expansions, the electrostatic field due to a given charge distribution, the interaction energy of a charge distribution with a given external field, and the electrostatic interaction energy of two charge distributions are decomposed into multipolar components. Extensive use is made of symmetry arguments. Comparisons with the Cartesian tensor method are also given.