Skip to main content
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.

Production of Two Overlapping Bose-Einstein Condensates by Sympathetic Cooling

Published

Author(s)

C J. Myatt, E A. Burt, R W. Ghrist, Eric A. Cornell, C E. Wieman

Abstract

A double magneto-optic trap apparatus with a number of desirable features was used to create condensates of 2x106 atoms in either of the F=2, m=2 or F=1, m=-1 spin states of 87Rb. Overlapping condenstates of the two states were also created using nearly lossless sympathetic cooling of one state via thermal conduct with the other. We observed the i) the scattering length of the 1,-1 state is positive, ii) the rate constant for spin exchange collisions between the two state is 2(1) x 10-14 cm3/s, and iii) there is a repulsive interaction between the two condensates. Other similarities and differences between the behaviors of the two spin states are discussed.
Citation
Physical Review Letters
Volume
78
Issue
No. 4

Keywords

Bose-Einstein condensation, magneto-optical trap

Citation

Myatt, C. , Burt, E. , Ghrist, R. , Cornell, E. and Wieman, C. (1997), Production of Two Overlapping Bose-Einstein Condensates by Sympathetic Cooling, Physical Review Letters (Accessed March 2, 2024)
Created December 31, 1996, Updated October 12, 2021