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I am looking for a nice book or online course treating in a rigorous way the quantization of the E.M field.

My needs in the end are to do quantum optics, but I would like to see the proof in a nice way. Indeed in the books I have read, they basically show that the Hamiltonian is a sum of harmonic oscillators, and then quantize each mode.

But I am more interested in a rigorous derivation with the Lagrangian, using the canonical quantization.

Where can I find such resource ?

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  • $\begingroup$ This can be found in any QFT textbook. $\endgroup$ – JamalS Apr 6 at 17:57
  • $\begingroup$ In QFT they do it with relativistic particles which give some extra complexification $\endgroup$ – StarBucK Apr 6 at 18:17
  • $\begingroup$ Actually it is treated in "Photons and Atoms: Introduction to Quantum Electrodynamics" by Cohen Tanoudji $\endgroup$ – StarBucK Apr 7 at 12:04

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