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Physics
Quantum Physics
Canonical quantization of Electrodynamics: physical intuition ?
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[QUOTE="maajdl, post: 6241525, member: 497282"] [B]TL;DR Summary:[/B] Going from Poisson brakets to commutators is very easy but not very intuitive. Hello, I am freshly retired and enjoy going back to the fundamentals. I followed the wonderful courses by Alain Aspect on Coursera on Quantum Optics [URL='https://www.coursera.org/learn/quantum-optics-single-photon']1[/URL] and [URL='https://www.coursera.org/learn/quantum-optics-two-photons/']2[/URL] . The quantization of Electrodynamics is really easy stuff. Just follow the correspondence between Poisson brakets and Commutators ... and start counting photons ! This correspondence principle comes with some intuition when it is applied to electrons or particles. This is because the conjugated variables x and p are intuitive from classical mecanics, and because of the packet wave view which brings its own intuition. However, when discovering that q and p are conjugated variables for a mode in Electrodynamics, there is apparently no bonus intuition that come together. At least because q and p are not the position and momentum of a particle. Quantization remains easy, but looks a bit like magics! (specially with the creation and annihilation operators!) Therefore I am looking for some intuition about the Canonical quantization of Electrodynamics! Would you have some suggestion? Thanks Michel [/QUOTE]
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Canonical quantization of Electrodynamics: physical intuition ?
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