# Can these questions be imported?

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I have some old posts from PSE which are not answered/ not satisfactorily answered, I have chosen some I-believe well posed ones,

From quantization under external classical gauge field to a fully quantized theory

How is Laughlin's gauge argument explaining integer quantum hall effect(IQHE)?

（well actually for the above one I don't really know if it is graduate level, I'm very much a newbie to condensed matter physics）

Can we “trivialize” the equivalence between canonical quantization of fields and second quantization of particles?

(the above I suspect is somewhat an open-ended question, I took one answer as the "correct" one simply because the answer provides a perspetive that I was aware of but never went further into as many details as it provides. So in fact I'd like to see more discussions)

How to get the iϵ prescription for a Faddeev-Popov ghost propagator?

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