Creating cold dipolar matter with Stark deceleration: trapping, cooling, and precision measurement

Date: 
Monday, April 30, 2007 (All day)
Speaker: 
Dr. Benjamin Lev
Speaker's Institution: 
University of Colorado

The experimental realization of large samples of ultracold, ground state polar molecules would be a major breakthrough for research in ultracold collisions and chemistry, quantum information processing, and the study of novel states of matter.  To accomplish this goal, our research has focused on the use of a Stark decelerator to slow a supersonic expansion of OH.  The cold molecular packets produced have enabled us to perform precision microwave spectroscopy of the OH ground state structure. This has importance for constraining fundamental constant variation and the identification of candidate molecular qubits.  In addition, we have recently demonstrated the magnetic trapping of the highly polarizable OH molecule in the presence of tunable electric fields.  We will present our latest results on trapping dynamics as well as discuss the feasibility of OH cavity-assisted laser cooling, which may provide access to the ultracold regime.