2D magneto-optical trap as source for cold ions

Jonathan Lee Yang, Kaiyue Wang, Eric Mulero-Flores +3 more

Jaime Ramirez-Serrano, James M. Kohel, James R. Kellogg +3 more

An apparatus that serves as a source of a cold beam of atoms contains multiple two-dimensional (2D) magneto-optical traps (MOTs). (Cold beams of atoms are used in atomic clocks and in diverse scientific experiments and applications.) The multiple-2D-MOT design of this cold atom source stands in contrast to single-2D-MOT designs of prior cold atom sources of the same type. The advantages afforded by the present design are that this apparatus is smaller than prior designs.

Sonia Grego, M. Colla, A. Fioretti +3 more

Jacob Johansen, Brian Estey, Mary Rowe +1 more

We demonstrate fast loading of our trapped ion quantum computer using a compact 2D Magneto-Optical Trap (MOT). We characterize the MOT loading system by direct measurements of the cold atomic beam produced thereby. We load both ytterbium and barium ions two orders of magnitude faster than using a conventional oven loading method with negligible impact on vacuum performance in the trapped ion region. These improvements to loading address one of the concerns in scaling our QCCD architecture up to large Qubit numbers.

Christiane Ebongue, Eric Magnan, Pablo Solano +2 more

Chasen S Himeda