Quantum Mechanics in Three Dimensions — David J. Griffiths
Physics — Quantum Mechanics · spin_one_matrices
Problem
Construct the spin matrices (Sx, Sy, and Sz) for a particle of spin 1. Hint: How many eigenstates of Sz are there? Determine the action of Sz, S+, and S− on each of these states. Follow the procedure used in the text for spin 1/2.