6.3 Atomic and Molecular Physics: Localization, Excitation, and Relaxation in Disordered Atomic Hubbard Models
Abstract
The objective of this experimental effort is to investigate the disordered Fermi-Hubbard model by trapping ultra-cold fermionic 40K atoms in a disordered optical lattice. The approach of this effort will include determining the impact of disorder on doublon transport and lifetimes and relaxation timescales for metallic and insulating states. Doublons, or double occupancies of lattice sites, are the fundamental excitation of a Mott insulator and may play a central role in future Mottronic devices. A new technique for measuring the influence of disorder and interactions on spatially local excitations will be developed, and relaxation, diffusion, and transport will be investigated in strongly correlated and many-body localized states. These measurements may clarify the role that many-body localization can play in protecting topological quantum information.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 06, 2017
- Source ID
- W911NF1610413
Entities
People
- Brian Demarco
Organizations
- Army Contracting Command
- United States Army
- University of Illinois Urbana–Champaign