confusion on quantum field theory
I asked are field quanta infinite in extent and I keep getting back that its the probabibility distribution. But this is a normal quantum mechanics answer. In terms of quantum field theory, what is meant by saying a field quanta of an electron field is infinite in extent? does it mean the quanta is infinite in size? Art Hobson has said its energy can be spread across light years which surely means the field quanta of the field is massive in size?
if we assume the wavefunction is real and doesn't collapse then each quanta is a wave spread across the whole of space, correct?