188.8.131.52 Solution complexsc-a
Show that the normalization requirement for means that
For brevity, write
For to be normalized, its square norm must be one:
According to the previous subsection, this inner product evaluates as the sum of the inner products of the matching spin components:
Now the constants can be pulled out of the inner products as , and the inner products that are left, all , are one since was normalized through the choice of the constant . So the claimed expression results.