Theoretical Physics Seminar: Miquel Jorquera

Photons are the particle of light. Or so they say... Have you ever seen (in a proper quantum mechanics text) a photon represented at a specific point in space? Have you ever seen its wavefunction? No, because it turns out that it's impossible! In this talk I will explain why photons cannot be localized in space and thus have no wavefunction, how actually nothing can be localized in space, why photons in particular are very, very non-localizable, and how to completely ignore all of that and build a photon wavefunction anyway.