(Asking a few questions would show them that we have seen details about the university and the department and chose to proceed, rather than applying for the university like every other applications) I said that I have seen the university website earlier and I have few questions about which detail couldn't be seen on website 1. Is there a journal club within the department 2. Can the project be published at the end of PhD 3. Do I get to present my project in conferences 4. Is there possibilities to teach - maybe for undergrads
I prepared by making myself familiar with the research themes and how I could apply my experience to active projects within the group. My advice for preparation is to check publications in the field, recent publications by staff in the group, etc.
As a consequence of the rotational invariance of the electromagnetic field, the field itself has an angular momentum density, which can be transmitted to atoms by interactions of higher order than the electric dipole interaction.