The system of academic physics, and the world of science, is not out to "steal" your ideas. Science is a cooperative effort and all the best ideas are free--by definition. The spirit of science is to share ideas and inventions. Only by this fundamental sharing has science been able to progress to where it is today. Proprietary notions of "owning" intellectual property are relatively new, not much more than ten or twenty years old. Many scientists actually fear that this trend will wreck science. Essentially all "real" scientists do not care about who "owns" an idea and freely publish their work, now usually on the Web first, then on paper. You should do the same. Your first step should be to find a sympathetic professor at your university, organize a meeting, and discuss your ideas, clarify your math, and talk about the possibility of writing a paper. In all likelyhood the professor will probably point out a bad assumption or a fallacy in your reasoning and then you can give it another try. Good luck. This is really the proper way to go. Otherwise, you are not really participating in the scientific community.