Skip to main content

NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.

Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.

U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

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

Published

Author(s)

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

Abstract

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.
Citation
Physical Review A (Atomic, Molecular and Optical Physics)
Volume
65

Keywords

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

Citation

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 October 10, 2025)

Issues

If you have any questions about this publication or are having problems accessing it, please contact [email protected].

Created January 1, 2002, Updated August 10, 2018
Was this page helpful?