MANY-BODY DYNAMICS OF QUANTUM GASES IN TIME VARYING OPTICAL LATTICES
Abstract
Quantum gases of ultracold atoms and molecules in optical lattices form excellent systems to study many-body dynamical phenomena of importance in quantum simulation and information science. Understanding and harnessing the role of atomic interactions are key to these endeavors. We wish to investigate a set of interaction-driven phenomena using quantum gases in time-varying optical lattice potentials. Three areas of study are planned. Firstly, we will investigate interaction effects on the 3D Anderson metal-insulator transition using a quasi-periodically kicked ultracold bosonic gas, building on our recent observations of interaction-driven disruption of 1D dynamical localization in a periodically kicked quantum gas. Secondly, we will study periodically kicked mixtures and molecules with interactions tuned using a magnetic Feshbach resonance. These experiments on kicked quantum gases will shed light on central questions surrounding the dynamics of out-of-equilibrium many-body systems. The regimes of experimental investigations will extend beyond the validity of mean-field approximations, thus also informing and challenging theoretical approaches in the community. Finally, we will advance our longer-term goal of efficient creation and study of ultracold doublet-sigma molecules, utilizing our recently discovered interspecies Yb-Li Feshbach resonances for magneto-association within optical lattice confinement. This effort aims to realize a new class of ultracold molecules, offering unique possibilities in creating novel quantum matter, advancing precision measurements, and for quantum simulation and information processing. All these quantum simulation experiments will be performed on an apparatus for producing ultracold atomic gases of Yb and Li in a variety of bosonic and fermionic isotopes, singly or in mixtures, and with three-dimensional optical lattice capabilities. These projects will also provide educational and research experience for undergraduate and graduate students, who form part of the next generation of scientists and engineers.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Mar 07, 2023
- Source ID
- FA95502210240
Entities
People
- Subhadeep Gupta
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- University of Washington