Exercises for
Single Measurements of Quantum-mechanical Spin-1/2 Systems

 

Eigenstate Follow Up Questions

~~1. Predict the result of an experiment in which a beam of spin-1/2 particles each in an identical superposition of eigenstates was incident on an ideal Stern-Gerlach apparatus.  What from your experience with energy eigenstates would lead you to believe this?   

 

~~2. Write out an equal-mix (same proportion) superposition in terms of |z+> and |z−>.  Is your answer unique?  In other words, is there more than one value the coefficients can take and still be an equal-mix superposition?