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Two-species magneto-optical trap with 40K and 87Rb

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arxiv cond-mat/0108287 v2 pith:5YYMHDD2 submitted 2001-08-20 cond-mat.stat-mech

Two-species magneto-optical trap with 40K and 87Rb

J. Goldwin , S. B. Papp , B. DeMarco , D. S. Jin This is my paper
classification cond-mat.stat-mech
keywords traptwo-specieslasermagneto-opticalamplifiedamplifieratombose-fermi
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We trap and cool a gas composed of 40K and 87Rb, 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 numbers of 1x10^7 40K and 2x10^9 87Rb are trapped in the two-species MOT. Observation of trap loss due to collisions between species is presented and future prospects for the experiment are discussed.

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