Application of Ultracold Molecules to Inertial Sensing for Navigation
Abstract
We are studying fundamental interactions between ultracold atoms and near-resonant laser light. In particular, we have been investigating ultracold collisions between one alkali atom (rubidium) and one metastable noble gas atom (argon). The research is geared to the ultimate goal of producing ultracold molecules for use in a new generation of matter wave interferometers with enhanced sensitivity. Such devices will improve the performance of gyroscopes used in naval navigational systems. The project addressed above is a long term (multi-year) endeavor. During the performance period of the ONR grant, we have observed a surprisingly weak interaction between ultracold rubidium and ultracold, metastable argon. We have measured a total trap loss rate coefficient for rubidium due to the presence of argon. Experiments to assign the exact mechanism of trap loss (radiative escape, Penning ionization, associative ionization...) are ongoing. We successfully implemented a quadrupole mass spectrometer system which is capable of differentiating between ionization products. As a result, a new measure of the ratio of Penning to associative ionization in metastable argon traps has been made.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2004
- Accession Number
- ADA421641
Entities
People
- Charles L. Sukenik
Organizations
- Old Dominion University