Dynamics and Spin Transport of Ultracold Fermions
Abstract
This project will investigate how dissipation occurs at the microscopic scale. A sample of several thousand neutral atoms is cooled to nanokelvin temperatures, near absolute zero. In this regime, the laws of quantum mechanics will govern the time evolution of the sample from a controlled initial condition towards thermodynamic equilibrium. The transport of spin is characterized by measuring the rate of demagnetization. Time-resolved spectroscopy is also used to study the growth of pair correlations, associated with an increase in interaction energy. The effect of planar confinement will be explored, to resolve an outstanding discrepancy between theory and experiment in prior work. The over-arching goal of the work is to test the proposed bound of dissipation rates, with relevance to advanced materials.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jan 12, 2017
- Source ID
- W911NF1510603
Entities
People
- Joseph H. Thywissen
Organizations
- Army Contracting Command
- United States Army
- University of Toronto