If ka is below this value it cost much power to add currents that radiate multipole fields
of index l, or higher.
This field is a function of both the applied and multipole fields
in the media.
Laplace's equations in dimensions higher than 3 correspond to electric multipole fields
of order 1, where 1 = n - 3.
studied the scattering of a Hermite-Gaussian beam by a chiral sphere by using the relations between the multipole fields
and the conventional Hermite-Gaussian beam .
For the proposed setup, the volume between two nested cylinders made from magnetic multipole fields
is used to store the UCN (Fig.