Notable staff have included the mathematicians Benoît Mandelbrot, Ralph E. Gomory, Shmuel Winograd, Alan Hoffman, Don Coppersmith, Gregory Chaitin, the inventor Robert Dennard, roboticist Matthew T. Mason, author Clifford A. Pickover, computer scientists Frances E. Allen, John Cocke, Stuart Feldman, Ken Iverson, Irene Greif, and Mark N. Wegman, Barry Appelman, Wietse Venema, the 1990 Economics Nobel Prize winner, Harry Markowitz, and physicists Llewellyn Thomas, Rolf Landauer, Charles H. Bennett, Elliott H. Lieb, J. B. Gunn, Leroy Chang, 1973 Physics Nobel Prize winner, Leo Esaki, Jay Gambetta, Uri Sivan, President of the Technion – Israel Institute of Technology, and Zvi Galil, President of Tel Aviv University.