The discussion centers on the relationship between electromagnetic fields, energy density, and the concept of frequency in the context of electromagnetism and quantum mechanics. Participants explore how to reconcile classical electromagnetic theory with quantum concepts, particularly regarding the role of photons.
There is no consensus on whether to incorporate photons into the discussion, with some participants advocating for their exclusion while others suggest a reconciliation with quantum concepts.
Participants express differing views on the relevance of photons in understanding electromagnetic fields, indicating a potential limitation in reconciling classical and quantum perspectives.
Don't!sweet springs said:
To add to the above list of advices: Also treat photons as (quantum) fields. They are in no way similar to anything you'd call a particle in everyday life, and in the 21st century relativstic QT should be learned only as QFT. A first-quantization approach is outdated and misleading!DrClaude said:Don't!
There is no need to introduce photons here, and it will only detract you from understanding what is going on. Threat the electric and magnetic fields as fields, and electromagnetic waves as waves, and everything will work out.
If you absolutely need to reconcile it with a photon concept, you would simply have more or fewer photons for the same energy density, depending on the frequency of the photons.