Education B.S. Physics with honors, University of Texas at Austin M.S. Applied Mathematics, University of Colorado at Boulder M.S. Physics, University of Colorado at Boulder Ph.D. Mathematical Physics, University of Colorado at Boulder, with A. O. Barut Experience 1986-1987: Visiting Scientist, International Center for Theoretical Physics, Trieste, Italy 1988-1989: Assistant Professor, Metropolitan State University of Denver, Colorado 1989-1990: Researcher, Max Planck Institute for Quantum Optics 1990-1994: National Research Council Associate, Redstone Arsenal, Alabama 1994-1998: Physicist, Army Aviation & Missile Command, Redstone Arsenal, Alabama 1998-1999: Scientist, Senior Level, Jet Propulsion Laboratory, Pasadena, California 1999-2004: Principal Scientist, Jet Propulsion Laboratory, Pasadena, California 2000-2004: Group Supervisor, Jet Propulsion Laboratory, Pasadena, California 2004-present: Hearne Professor of Theoretical Physics, LSU, Baton Rouge, Louisiana 2006-present: Co-Director, Hearne Insitute for Theoretical Physics, LSU, Baton Rouge, Louisiana 2011-present: Associate Memember, Computational Science Research Center, Beijing, China