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In this thread, I want to discuss the implications of quantum field theory for the interpretation of quantum mechanics. To set the stage I'll import in the next few posts a number of posts from other threads. The latest of these is the following:
Only if it is the sole particle in the whole universe.stevendaryl said:Quantum field theory certainly can be used to describe a single electron in a state with a definite spin-up in the z-direction, can't it?