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Hi,

I am have trouble finding whether or not the topic is possible.

It concerns an electronic dipole.

I am well familiar with the general rules: https://en.wikipedia.org/wiki/Selection_rule

Is it possible for transitions to occur from e.g. ^4P_1/2 and ^4P_2/3, which are both in n=3?

If they were in two different excited states it would be possible, this I know, but I am unsure of whether or not the rule pi_f = -pi_i plays a role when a possible transition would occur within the state. If it does then it is a matter of pi_f = pi_i, which is not allowed in an electric dipole.

Any help would be greatly appreciated!

Regards,

Toby

I am have trouble finding whether or not the topic is possible.

It concerns an electronic dipole.

I am well familiar with the general rules: https://en.wikipedia.org/wiki/Selection_rule

Is it possible for transitions to occur from e.g. ^4P_1/2 and ^4P_2/3, which are both in n=3?

If they were in two different excited states it would be possible, this I know, but I am unsure of whether or not the rule pi_f = -pi_i plays a role when a possible transition would occur within the state. If it does then it is a matter of pi_f = pi_i, which is not allowed in an electric dipole.

Any help would be greatly appreciated!

Regards,

Toby

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