Magnets, how do they work? (part 2)

I will talk about the origin of the magnetic dipole construct here. Consider a loop of wire… You may have noticed that I posted an entry entitled “NMR and Spin flipping (part 2)” which has since disappeared. It turns out that wordpress doesn’t synch so well between its mobile app and its main page: I […]

Spherical Harmonics and State Rotation

Working my way through Sakurai problem 3.18. I spent quite a bit of time thinking about how exactly to interpret the math that underlies this problem. Here’s the problem as written in my notebook: “18.) Consider an orbital angular momentum eigenstate |l=2, m=0>. Suppose this state is rotated by an angle beta about the y-axis. […]