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Quantum Mechanics with Basic Field Theory by Bipin R. Desai

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18 Interaction of charged particles and radiation in perturbation theory

We consider here some specific and well-known cases involving the interactions of charged particles and electromagnetic field which are solved using time-dependent perturbation theory. These include Coulomb excitation of atoms, photoelectric effect, ionization of atoms due to electromagnetic interaction, plus, in a first use of second-order time-dependent perturbation, obtaining the cross-sections for Thomson scattering and the related Rayleigh and Raman scattering.

18.1 Electron in an electromagnetic field: the absorption cross-section

 

As discussed in Chapter 6, the Hamiltonian for an electron of charge e in an atom interacting with an external electromagnetic field ...

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