- #1
karlzr
- 131
- 2
In QFT, all particles can be interpreted as excitations of some fundamental quantum fields in the vacuum. This is the quantum picture. But in classical world, only photons and gravitons have classical counterparts. How to explain this? The common feature of these two is that they are intermediate particles of long-range interactions. But This is far from satisfactory to me. So I was wondering whether there is a deeper and better explanation of this problem.