Title: Quantum simulators: a pointilist perspective on many-body physics
Abstract: This talk reviews recent progress in cold atom simulations of correlated electron systems. These experiments feature high tunability of microscopic Hamiltonians and yield novel snapshots of many-body states with single-particle resolution. We discuss several new insights revealed by these experiments alongside their theoretical interpretations. Beginning with the Fermi-Hubbard model on the square lattice, we examine how recent experiments in optical lattice emulators suggest the existence of a single, doping-dependent energy scale that determines both the static correlations and dynamical responses of these systems. We then review the recent experimental demonstration of magnetically mediated pairing in mixed-dimensional configurations. Turning to frustrated geometries, we explore kinetic magnetism on triangular lattices in the strongly interacting regime relevant to moiré TMDC materials. We detail the formation of magnetic polarons and multi-particle bound states, highlighting how they have been successfully probed using quantum gas microscopes and Rydberg arrays. Finally, we review evidence for a fractionalized phase arising from kinetic magnetism in the Fermi-Hubbard model on a triangular lattice, concluding with prospects for its experimental investigation.
Note: This seminar will be happening in-person only.Â
Location: Huxley 139, 14.00-15.00.