Keith Schwab (born May 18, 1968) is an American physicist and a professor of applied physics at the California Institute of Technology (Caltech).

[1] He joined Caltech in 1996 as a Sherman Fairchild Distinguished Postdoctoral Scholar In the group of Professor Michael Roukes.

[3] Schwab joined the U.S. National Security Agency in 2000 and led a group to study the quantum limits of mechanical structures, during which time he was named as a promising young innovator by Technology Review.

[5] In 2005, he was named a Young Global Leader by the World Economic Forum and attended the annual meeting in Davos, Switzerland in 2005, 2007, and 2008.

In 2006, Schwab moved to Cornell as an associate professor of physics where his group focused on both the cooling of mechanical structures to near the quantum ground state,[6] and the observation of motion which fundamentally avoids the Heisenberg Uncertainty Principle.