It seems as though to give an account of spontaneous emission of photons in a sample of excited hydrogen atoms you would have to give some kind of account of when collapse of the wavefunction takes place. Has work been done on this?
I'm reading Gerald Folland's "Quantum Field Theory: A Tourist Guide for Mathematicians" and I'm up to Section 6.2 which is called "A toy model for electrons in an atom". He has a nonrelativistic particle of mass M and a scalar field with quanta of mass m and the state space for the particle is...
Hi, I am a mathematician and I've been trying to learn quantum field theory and I joined because there are some aspects of how the theory relates to experimental outcomes that I want to understand better.