Ultracold Atomic Kondo Impurities
Abstract
This goal of this project was to build a system that can simulate Kondo and spin-exchange physics using laser-cooled lithium and cesium atoms. During the first project year, the lithium portion of the apparatus was made fully operational, and we demonstrated the production of a molecular Bose-Einstein condensate (mBEC), which was published in Physical Review A[1]. During the second project year, we began the initial development of the cesium module for eventual integration into the main apparatus. This involved a successful three-dimensional cesium magneto-optical trap (3D-MOT), which is loaded by a 2D MOT vapor cell on a removable flange. We also demonstrated our radio frequency capabilities and proposed a method to use them to measure spin susceptibility, which was presented at the 2019 DAMOP meeting (Division of Atomic, Molecular and Optical Physics of the American Physical Society). During the third and final project year, we concluded a project using our novel RF spin susceptibility technique to measure across the interaction/temperature phase diagram, and those results were finalized and submitted for publication (under review)[2]. We also deployed an optical lattice in the lithium apparatus, and we have finalized the modular cesium 2D source and a complete control system for cesium. The project is lead by a postdoctoral scholar, Yun Long, who is assisted by two senior student, Feng Xiong and Kaiyue Wang, who have made tremendous progress and can now work independently, and one junior student, Jonathan Yang.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 28, 2022
- Accession Number
- AD1230782
Entities
People
- Colin Parker
Organizations
- Georgia Tech Research Corporation