We trap and cool a gas composed of ${}^{40}\mathrm{K}$ and ${}^{87}\mathrm{Rb},$ 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 numbers of $1\ifmmode\times\else\texttimes\fi{}{10}^{7}$ ${}^{40}\mathrm{K}$ and $2\ifmmode\times\else\texttimes\fi{}{10}^{9}$ ${}^{87}\mathrm{Rb}$ 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.We trap and cool a gas composed of ${}^{40}\mathrm{K}$ and ${}^{87}\mathrm{Rb},$ 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 numbers of $1\ifmmode\times\else\texttimes\fi{}{10}^{7}$ ${}^{40}\mathrm{K}$ and $2\ifmmode\times\else\texttimes\fi{}{10}^{9}$ ${}^{87}\mathrm{Rb}$ 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.

arXiv:cond-mat/0108287Physical Review AJan 3, 200284 citations

Trap Loss in a Rb-Ar* Dual Species Magneto-Optical Trap**

Charles I. Sukenik, H. C. Busch

APSNov 1, 20030 citations

We trap and cool a gas composed of

{}^{40}\mathrm{K}

and

{}^{87}\mathrm{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 numbers of $1\ifmmode\times\else\texttimes\fi{}{10}^{7}$

{}^{40}\mathrm{K}

and $2\ifmmode\times\else\texttimes\fi{}{10}^{9}$

{}^{87}\mathrm{Rb}

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.