APS » PROLA » Phys. Rev. A » Volume 65 » Issue 2

Phys. Rev. A 65, 021402 (2002) [4 pages]

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

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J. Goldwin, S. B. Papp, B. DeMarco *, and D. S. Jin †
JILA, National Institute of Standards and Technology and University of Colorado, Boulder, Colorado 80309

Rapid Communication Received 17 August 2001; published 3 January 2002

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 1×107 40K and 2×109 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.


©2002 The American Physical Society

URL: http://link.aps.org/abstract/PRA/v65/e021402
DOI: 10.1103/PhysRevA.65.021402
PACS: 32.80.Pj, 03.75.Fi, 05.30.Fk

* Present address: Time and Frequency Division, National Institute of Standards and Technology, University of Colorado, Boulder, CO 80309.
† Present address: Quantum Physics Division, National Institute of Standards and Technology, University of Colorado, Boulder, CO 80309.

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