Contact: Barbara K. Kennedy
science@psu.edu
814-863-4682
Penn State
Caption: Schematic of Fountain Clock Juggling Cesium Atoms. Two clouds of cesium atoms are tossed upward with a short time delay so that they collide after passing through the microwave cavity (silver) on the way up and before they return down through the cavity. The microwaves in the cavity excite and probe the atoms, resulting in an atomic fountain clock.
Credit: Kurt Gibble, Penn State
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Related news release: New method to directly probe the quantum collisions of individual atoms