His research, in the areas of the mathematical and theoretical physics of supersymmetric particles, fields and strings, covers topics such as the physics of quarks, leptons, gravity, super and heterotic strings and unified field theories of the type first envisioned by A. Einstein. In recent times his focussed interests have been upon two classes of problems: (a) the foundations of the symmetries of superstring/M-theory (hep-th/0002010) and (b) 4D, N = 1 supersymmetry in the context of hadron phenomenology (hep-ph/9912362) and effective actions (hep-th/0002045). More generally, he performs work in a broad range of investigation involving supersymmetrical systems. In 1998 he was named the first John S. Toll Professor of Physics and thus the first African-American to hold an endowed chair in physics at a major research university in the U.S. Dr. Gates has authored or co-authored over 120 research papers published in scientific journals, co-authored one book (an extremely technical presentation for specialists) and contributed numerous articles in others. His research, in the areas of the mathematical and theoretical physics of supersymmetric particles, fields and strings, covers topics such as the physics of quarks, leptons, gravity, super and heterotic strings and unified field theories of the type first envisioned by A. Einstein.