Raman Sundrum is the John S. Toll Professor of Physics at the University of Maryland. He did his undergraduate studies at University of Sydney in Australia and received his Ph.D. from Yale University. He did his postdoctoral research at UC Berkeley, Harvard, BU and Stanford. He joined the faculty of the Department of Physics and Astronomy of the Johns Hopkins University in 2000, and became one of two Alumni Centennial Chairs there. In 2010, he moved to the University of Maryland. His research in particle physics and cosmology focuses on theoretical mechanisms and observable implications of extra spacetime dimensions, supersymmetry, and strongly coupled dynamics. His highest impact contribution to the field is a class of extra-dimensional models called the Randall–Sundrum models, first published in 1999 with Lisa Randall. Sundrum is a UMD Distinguished University Professor.