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Two-Species Magneto-Optical Trap With 40K and 87Rb



J Goldwin, S Papp, B. L. DeMarco, D S. Jin


We trap and cool a gas composed of 40K and 87 Rb, using a two-species magneto-optical trap (MOT). This trap represents the first step towards cooling the Bose-Fermi mixture to quantum degeneracy. Laser light for the MOT is derived from laser diodes and amplified with a single high-power semiconductor amplifier chip. The four-color laser system is described, and the single-species and two-species MOTs are characterized. Atom number of 1 X 10740K and 2 X 10987Rb are trapped in the two-species MOT. Observations of trap loss due to collisions between species is presented and future propects for the experiment are discussed.
Physical Review A (Atomic, Molecular and Optical Physics)


laser cooling and trapping, magneto-optical traps, ultracold atomic physics


Goldwin, J. , Papp, S. , DeMarco, B. and Jin, D. (2002), Two-Species Magneto-Optical Trap With <sup>40</sup>K and <sup>87</sup>Rb, Physical Review A (Atomic, Molecular and Optical Physics) (Accessed November 30, 2023)
Created January 1, 2002, Updated August 10, 2018