AMOP Seminar

Dr. Stanimir Kondov, Columbia University

"Quantum Gas Microscopy of the Fermi-Hubbard Model"

4:00pm, RLM 11.204

Abstract: Quantum simulations with ultracold atoms have provided valuable insight into the interacting many-body problem. Recently, the field has experienced rapid development due to the unveiling of lattice fermion experiments capable of single-site-resolved imaging. I will introduce the new microscope at Princeton, and I will present a detailed study of correlations in the 2D Fermi Hubbard Model: a toy model originally invented to describe strongly interacting electrons. Correlations (measured both in- and out-of-plane) reveal canting in the anti-ferromagnetic order when a Zeeman field is applied. The polarization of the gas exhibits non-monotonic behavior with doping, resembling the behavior of the magnetic susceptibility in the cuprates. The results show excellent agreement with state-of-the-art numerics.