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Originally Posted by Sylas
Quote:
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Originally Posted by Tobin Dax
Actually, I just got a really interesting idea that seems to answer the point of my original intended post. Two-photon emission. That's the only solution I see to the energy budget problem.
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Yes... I considered this also, in this post. There are some other conservation laws and principles that may apply, and I'm not good enough at quantum physics to identify them.
You can calculate what is permitted by energy budgets as follows. First, split the original photon into the red-shifted photon you want to continue, and another one carrying the difference in energy and moving in exactly the same path. Then take the second photon, and do a Compton interaction with the electron. End result: one redshifted photon on the original trajectory, plus a photon and a recoiling electron.
Electrons don't split up photons in this way, but the energy budget works.
It does not match Lyndon's descriptions, however. There is no absorption; a free electron cannot absorb a photon. There is also no basis for the "calculations" Lyndon gives for the expected redshift. This method works with any redshift you like.
Cheers -- Sylas |
So the good thing about posting tired is that my follow-up will be posted before I get to it. :wink:
This is exactly what I was going to say about the whole situation. Most of it had entered my head last night, but wasn't quite coherent enough at that hour to post it. As Grey said, spin conservation also kills this before it leaves the gate. Well, good. Thanks, guys.