A partial-wave expansion of the finite r
โ
W Happer
๐
Article
๐
1968
๐
Elsevier Science
๐
English
โ 539 KB
We discuss a useful expansion of the finite rotation operator, exp(-ipA \*J), into partial waves. This expansion is analogous to Rayleigh's expansion of a plane wave, exp(ik \* r), into spherical harmonics and spherical Bessel functions. A close relationship exists between these two expansions in th