My one problem with Feynman’s QED

Stimulated emission of photon from an atom
Stimulated emission of photon from an atom (Photo credit: Wikipedia)

Well, as predicted, I finished off Richard Feynman‘s QED – The Strange Theory of Light and Matter in short order this morning – and it is a truly marvellous book. I just wish I had read it as an undergraduate.

My one problem with it was its explanation of “stimulated emission“. Now, as an undergraduate, I remember I understood this quite well – it came up in a discussion of MASERs (intense microwave sources in deep space) as opposed to the more familiar LASERs ifI remember correctly. But that’s a long time ago.

Perhaps I should look it all up again.


2 responses to “My one problem with Feynman’s QED”

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