# QM: Spin-orbit and wavefunctions for H

## Homework Statement

Hi all.

I wish to evaluate the following dipole moment

$$<1| x |2>,$$

where |1> and |2> are stationary states of the hydrogen atom when one accounts for spin-orbit coupling. I am a little unsure of if I am allowed to use the "normal" unperturbed wavefunctions for hydrogen in this case, or if the wavefunctions change because of spin-orbit?

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