Griffiths Introduction to Elementary Particles · Problem 4.17

Bound States — David J. Griffiths

Physics — QFT · pauli-matrices-eigenvectors-sy

Problem

(a) Find the eigenvalues and normalized eigenspinors of

\hat{S}_y

, [equation (4.21)]. (b) If you measured

S_y

on an electron in the state

\begin{pmatrix} \alpha \\ \beta \end{pmatrix}

, what values might you get, and what is the probability of each?