- #1
CSnowden
- 25
- 3
This is an elementary question on visualizing the interaction of an electron with the surrounding EM field in QFT. I believe in QFT the electron is viewed as an excitation of the Electron matter field with an associated coupling constant between the electron field and EM field (say q) - q 'couples' the two fields and allows the electron to feel a force from the local value of the extended (free) EM field. But in classical physics many electrons together would be said to generate a higher surrounding EM field value, presumably by the combination of the attached EM field each generates. In QFT does the q coupling from each electron also raise the local EM field value, in addition to allowing the the electron (electron field excitation) to 'feel' the force from the EM field.