Polarized light has been known for ages, I think this is some kind of coherent state that allows those bundles of photons to carry more angular momentum than no

Polarized light has been known for ages, I think this is some kind of coherent state that allows those bundles of photons to carry more angular momentum than normal. I think the classical solution also allows for these twisted EM waves, but I'm not 100% sure. Edit: To be precise I think it's something like group velocity but applied to angular momentum, but I'm not an expert.