# Change of basis

by Norman
Tags: basis
 P: 922 Hello all, I need some help... If I know the form of a wavefunction in the $S_z$ basis, say it is spin up, how do I convert that to a wavefunction expressed in the $S_x$ basis? Is there a very simple way to do this? Thanks
 P: 922 Anyone??? Do I just rotate the spinor using a rotation operator? Help?
 Emeritus Sci Advisor PF Gold P: 5,540 You've basically got it. To convert from Sz to Sx, you rotate the state vector p/2 rad about the y-axis.
P: 855

## Change of basis

 Quote by Tom Mattson You've basically got it. To convert from Sz to Sx, you rotate the state vector p/2 rad about the y-axis.