Cartesian and spherical multipole expansions in anisotropic media

Abstract The multipole expansion can be formulated in spherical and Cartesian coordinates. By constructing an explicit map linking both formulations in isotropic media, we discover a lack of equivalence between them in anisotropic media. In isotropic media, the Cartesian multipole tensor can be redu...

Полное описание

Библиографические подробности
Главные авторы: Elias Le Boudec, Toma Oregel-Chaumont, Farhad Rachidi, Marcos Rubinstein, Felix Vega
Формат: Статья
Язык:English
Опубликовано: Nature Portfolio 2025-02-01
Серии:Communications Physics
Online-ссылка:https://doi.org/10.1038/s42005-025-01988-4