- #1
Niles
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Homework Statement
Hi
Whenever I read about the dipole approximation in QM, then the Hamiltonian is given as
[tex]
\hat {V}_{\text{dipole}} = -\mathbf{d}\cdot \mathbf{E}
[/tex]
where E is the electric field and d the dipole operator. What I am wondering about is that d is an operator. Is it wrong to include the hat in the interaction? As in
[tex]
\hat {V}_{\text{dipole}} = -\hat{\mathbf{d}}\cdot \mathbf{E}
[/tex]This is probably a silly question, but it is something that has been on my mind for some time.Niles.