Probing dynamical properties of Fermi-Hubbard systems with a quantum gas microscope (Prof. Waseem Bakr)
Probing dynamical properties of Fermi-Hubbard systems with a quantum gas microscope
- Date: Jul 22, 2019
- Time: 02:30 PM (Local Time Germany)
- Speaker: Prof. Waseem Bakr
- Princeton University, New Jersey, USA
- Location: Max Planck Institute of Quantum Optics
- Room: Herbert Walther Lecture Hall
In this talk, I will report on using a microscope to probe response functions associated with unequal-time correlations relevant for understanding the pseudogap and strange metal regimes of Fermi-Hubbard systems. First, I will describe the development of a technique to measure microscopic diffusion, and hence resistivity, in doped Mott insulators. We have found that this resistivity exhibits a linear dependence on temperature and violates the Mott-Ioffe-Regel limit, two signatures of strange metallic behavior. Next, I will report on the development of angle-resolved photoemission spectroscopy (ARPES) for Hubbard systems and its application to studying pseudogap physics in an attractive Hubbard system across the BEC-BCS crossover, setting the stage for future studies of the pseudogap regime in repulsive Hubbard systems.