RevTeX is a suite of style files used with LaTeX for generating documents which can then be submitted to an APS journal.
To use RevTeX, begin with a template document e.g. paper.templ or twocol.templ. Change the inputs as required. An excellent and concise manual is available in paper form in the lab, or from the APS. This has many examples of the kind of things that you can do, and how to do them, such as complicated tables and arrayed equations etc..