Ultra-Cold Fermi Gases with All-to-All Interactions

An ultracold Fermi gas inside an optical resonator acquires collective interactions through virtual photons. The seminar describes observations of charge-density ordering with spatial and temporal resolution, then considers coupling photons to pairs in a superfluid and initial evidence for pair-density ordering. It concludes with prospects for programmable cavity-mediated interactions and simulation of strongly correlated systems, including the SYK model.