If your idea makes any sense, you should not be spending money on publishing a book, but rather, send a succinct article to some journal like J. Physics A (Mathematical & Theoretical), J. Physics B (Atomic, Molecular, & Optical), J. Physics C (Solid State Physics), J. Physics D (Applied Physics), J. Physics E (Scientific Instruments), J. Physics F (Metal Physics), J. Physics G (Nuclear & Particle Physics).
You can find submission instructions on the Internet. If your idea is serious and not just "crackpot," you will get a serious response from professional physicists, and your idea will be published if the referees and the editor believe it has merit. Then others may use it, but your name would always appear when the idea is used in future investigations, no matter whose they are.