wang
(Wang)
#1
probability spinsSx=± ̄h/2. The third set-up shows how successive SG apparatus inz,x
and then again inzdirections regenerate spins withSz=− ̄h/2 from an incoming beam of
purelySz= + ̄h/2.
All these phenomena are accounted for quantitatively by describing the spin as a two-state
quantum system, built on a two-dimensional complex vector space with an inner product to
yield the transition amplitudes.
