I have a question about photons and the Schrödinger equation. Photons behave like particles but also as waves. I understand that this can be described by the Schrödinger equation as a photon having a certain probability to be somewhere. If I understand this correctly, I take it that there are places in which the photon is more likely to be found than other places. Since a photon travels, the following question arose with me: how does the spacial distribution of the probability of the photon being somewhere evolve over time? Is this what the Schrödinger equation describes? Is there an easy (layman) way to depict such a distribution? (over time) Thanks.