- #1
sharpstones
- 25
- 3
I have been going through many books on QED, trying to get a general non-mathematical feel for it before I take a course in it and I have come across some questions that I have not been able to answer.
Nearly all of the sources I have gone to refer to Feymann Diagrams as a easy way to depict the interactions between particles and their virtual particles. The most common example is two electrons moving through time come close together, one electron emits a photon (causing it to repel) and the other electron absorbs this photon causing to to move in the other direction.
This is hailed as being a wonderful explanation for the Electric Force through the use of virtual particles.
But what about the attractive force between a positively charge particle and a negatively charged one? Do the particles somehow emit photons in opposite directions so that they move towards each other?
Second, why do they emit photons in the first place? Is this just a convenient explanation for the phenomenon or is there a deeper reason for it?
If anybody can offer me some insight into these topics it would be greatly appreciated
Nearly all of the sources I have gone to refer to Feymann Diagrams as a easy way to depict the interactions between particles and their virtual particles. The most common example is two electrons moving through time come close together, one electron emits a photon (causing it to repel) and the other electron absorbs this photon causing to to move in the other direction.
This is hailed as being a wonderful explanation for the Electric Force through the use of virtual particles.
But what about the attractive force between a positively charge particle and a negatively charged one? Do the particles somehow emit photons in opposite directions so that they move towards each other?
Second, why do they emit photons in the first place? Is this just a convenient explanation for the phenomenon or is there a deeper reason for it?
If anybody can offer me some insight into these topics it would be greatly appreciated