Analytical Condition for Toroidal Anapole
Lecture Notes in Networks and Systems 2023
Dmitrii Borovkov, Vjačeslavs Bobrovs

Multipole decomposition of the localized current plays an essential role in a wide range of disciplines in modern physics, starting from the design of nanoantennas in photonics to the description of exotic states of matter. In the latter context, a third group of multipoles, toroidal multipoles, complementing the electric and magnetic ones, have been thoroughly investigated due to their lead to the formation of so-called anapole states, non-radiating sources. And further investigation shed light on the existence of higher-order toroidal dipoles, or equivalently, mean-square radii. Here we develop the classical anapole state obtained by destructive interference of electric and toroidal dipoles into the toroidal anapole which arises by destructive interference of electric toroidal dipole with first mean-square radius of electric toroidal dipole, presenting an analytical condition of such a state. #CSOC1120.

Atslēgas vārdi
Anapole | Multipole Decomposition | Toroidal Dipole

Borovkov, D., Bobrovs, V. Analytical Condition for Toroidal Anapole. No: Networks and Systems in Cybernetics: Proceedings of 12th Computer Science On-line Conference. Vol.2. Lecture Notes in Networks and Systems. Vol.723. Cham: Springer Nature, 2023. 244.-248.lpp. ISBN 978-3-031-35316-1. e-ISBN 978-3-031-35317-8. ISSN 2367-3370. e-ISSN 2367-3389. Pieejams: doi:10.1007/978-3-031-35317-8_22

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