Equation Icon  ( ) li = √−-1- ζ + ¯ζ,− i(ζ − ¯ζ),− 1 + ζ ¯ζ , (C.2 ) 2P 1 ( ) ni = √---- ζ + ¯ζ,− i(ζ + ¯ζ),− 1 + ζ ¯ζ , 2P m = √−-1-(1 − ¯ζ2,− i(1 + ¯ζ2),2¯ζ), i 2P √-- ci = li − ni = − 2i𝜖ijkmjm¯k.