- #1
Dumbleboar
- 2
- 0
hey,
I was asking myself a few questions about the selection rules for EM dipole radiation which occurs if electrons "jump" into lower bound states according to the selection rules.
now I know that the full explanation about matrix elements of the dipole operator comes from fermi's golden rule... which I will learn next semester... but apart from that...we have 2 considerations:
1) Parity... parity has to change... ok i got this
2) Conservation of angular momentum:
we have
ji=j[tex]\gamma[/tex] + jf
and we assume that
j[tex]\gamma[/tex]=1
WHY is this angular momentum 1??
I guess it has something to do that the cartesian components of the Dipole operator are proportional to linear compinations of the spherical harmonics Y1,m but I don't get this point at all...
I'd highly appreciate your help!
thanks in advance
I was asking myself a few questions about the selection rules for EM dipole radiation which occurs if electrons "jump" into lower bound states according to the selection rules.
now I know that the full explanation about matrix elements of the dipole operator comes from fermi's golden rule... which I will learn next semester... but apart from that...we have 2 considerations:
1) Parity... parity has to change... ok i got this
2) Conservation of angular momentum:
we have
ji=j[tex]\gamma[/tex] + jf
and we assume that
j[tex]\gamma[/tex]=1
WHY is this angular momentum 1??
I guess it has something to do that the cartesian components of the Dipole operator are proportional to linear compinations of the spherical harmonics Y1,m but I don't get this point at all...
I'd highly appreciate your help!
thanks in advance