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.

Observation of Anomalous Spin-State Segregation in a Trapped Ultracold Vapor

Published

Author(s)

H J. Lewandowski, D M. Harber, D Whitaker, Eric A. Cornell

Abstract

We observe counter-intuitive spin segregation in an inhomogeneous sample of ultra-cold, non-condensed, magnetically trapped Rubidium atomswith effectively two internal spin states. We use spatially selective microwave spectroscopy to verify a simple model'that accounts for thdifferential forces that apply to the two spin states. In any simple understanding of the cloud dynamics, the differential forces are far too smalto account for the dramatic transient spin polarizations observed. The underlying mechanism remains to be elucidated.
Citation
Physical Review Letters
Volume
88
Issue
No. 7

Keywords

phase separation, ramsey spectroscopy

Citation

Lewandowski, H. , Harber, D. , Whitaker, D. and Cornell, E. (2002), Observation of Anomalous Spin-State Segregation in a Trapped Ultracold Vapor, Physical Review Letters (Accessed October 6, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created January 31, 2002, Updated October 12, 2021