I want to do a masters. Currently I am doing my undergrad(4th year) in southern Ontario; my marks in math/physics are around A-. I enjoy quantum and atomic physics and am looking for a project, ideally in computational physics applying it to the former topics. I have emailed some professors, but unfortunately have only gotten a few replies with the advice "apply to the graduate program and see if you get in". I was under the impression that most of the time for graduate work you were supposed to basically already have a professor interested in taking you on before applying to school. Also I only found a few researchers in this area. So basically at this point in time I am at a loss of what to do and a little bit discouraged. Any advice would be great.