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kurious
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If a photon was made from more than one particle, how would quantum field theory be modified?
a photon is represented as two fermions? what the... can you provide a reference for this? every treatment of QED i have ever seen treated the photon field as a vector potential, satisfying commutation relations (not anticommutation). I have never seen this done, but I have read that some people have also tried quantizing the field strength itself, instead of the vector potential, but either way, it is still a bosonic field.selfAdjoint said:A spin 1 field, like the photon's, can be represented as the combination of two spin 1/2 fields. This is an idea that IIRC goes back to Schwinger. It's just math, because the spin 1/2 fields are not observed, and don't have any collective effects that are observed either.
selfAdjoint: can you provide a reference, a source, a name, for a theory that treats the photon as two fermions?selfAdjoint said:Tom, I haven't a clue. I haven't studied any of these theories deeply.
were you referring to crackpot theories?selfAdjoint said:Well the one I can't stand is from our occasional poster dr Ameen. And Tom just mentioned another one. Hey, I never said they were reasonable!
Quantum field theory is a theoretical framework that combines quantum mechanics and special relativity to describe the behavior of particles at the subatomic level.
In quantum field theory, a photon is described as a quantized excitation of the electromagnetic field. This means that it is made up of multiple particles, specifically virtual particles called "virtual photons."
The concept of a photon being made from multiple particles does not significantly change our understanding of light. It is simply a different way of describing the behavior of light at the subatomic level.
Yes, there have been multiple experiments and observations that support the idea of a photon being made from multiple particles. For example, the phenomenon of light scattering can be explained using the concept of virtual photons.
Quantum field theory is a fundamental theory that is used to describe the behavior of particles and fields in many other branches of physics, such as particle physics and cosmology. The concept of a photon being made from multiple particles is just one aspect of this larger framework.