Jun Ye: Let There Be Light (and Thus, Time) -- DARPA "Wait, What?"

Dr. Jun Ye, professor of physics at the University of Colorado at Boulder and a fellow of both the National Institute of Standards and Technology and JILA, explains how lasers are used to manipulate atoms inside and out for ultra-precise clocks. He spoke at DARPA's "Wait, What? A Future Technology Forum" on Sept. 11, 2015. https://www.darpa.mil/events/rewinds/...