# Quantum spin

1. 1) Consider a spin 1/2 system...

a) write expressions for the operators Sx Sy Sz in the basis composed of eigenkets of Sz
b) Write eigenvalues of Sx Sy Sz
c) Write eigenvectors of Sx and Sy in this basis

2) Write a matric corresponding to the operator S_ in the basis composed of the eigenkets of the operator Sx, |Sx;+->

2. Homework Equations : None

3. the results i have so far are:

1 = |+> <+|+|-><-|
Sz=h(bar)/2[|+> <+|+|-><-|]