Sidney David Drell is an American theoretical physicist and arms control expert. He is a professor emeritus at the Stanford Linear Accelerator Center (SLAC) and senior fellow at Stanford University's Hoover Institution. Drell is a noted contributor in the fields of quantum electrodynamics and high-energy particle physics. He was born on September 13, 1926 in Atlantic City, New Jersey, United States. Drell is active as a scientific advisor to the U.S. government, and is a founding member of the JASON Defense Advisory Group. He is also on the board of directors of Los Alamos National Security, the company that operates the Los Alamos National Laboratory. He is an expert in the field of nuclear arms control and cofounder of the Center for International Security and Arms Control, now the Center for International Security and Cooperation. He is a Senior Fellow at Stanford's Hoover Institution and an accomplished violinist. He is a trustee Emeritus at the Institute for Advanced Study in Princeton, New Jersey. He received the National Medal Of Science in 2011.