Two-species magneto-optical trap with 40K and 87Rb -: art. no. 021402

被引：76
|
作者：
Goldwin, J [1 ]
Papp, SB
DeMarco, B
Jin, DS
机构：
[1] Natl Inst Stand & Technol, Joint Inst Lab Astrophys, Boulder, CO 80309 USA
[2] Univ Colorado, Boulder, CO 80309 USA
来源：
PHYSICAL REVIEW A | 2002年 / 65卷 / 02期
关键词：
D O I：
10.1103/PhysRevA.65.021402
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We trap and cool a gas composed of K-40 and Rb-87, 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 1 x 10(7) K-40 and 2 x 10(9) Rb-87 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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页数：4
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