%0 Journal Article %J Phys. Rev. X %D 2021 %T Quench Dynamics of a Fermi Gas with Strong Long-Range Interactions %A Elmer Guardado-Sanchez %A Benjamin M. Spar %A Peter Schauss %A Ron Belyansky %A Jeremy T. Young %A Przemyslaw Bienias %A Alexey V. Gorshkov %A Thomas Iadecola %A Waseem S. Bakr %X

We induce strong non-local interactions in a 2D Fermi gas in an optical lattice using Rydberg dressing. The system is approximately described by a t−V model on a square lattice where the fermions experience isotropic nearest-neighbor interactions and are free to hop only along one direction. We measure the interactions using many-body Ramsey interferometry and study the lifetime of the gas in the presence of tunneling, finding that tunneling does not reduce the lifetime. To probe the interplay of non-local interactions with tunneling, we investigate the short-time relaxation dynamics of charge density waves in the gas. We find that strong nearest-neighbor interactions slow down the relaxation. Our work opens the door for quantum simulations of systems with strong non-local interactions such as extended Fermi-Hubbard models.

%B Phys. Rev. X %V 11 %8 5/24/2021 %G eng %U https://arxiv.org/abs/2010.05871 %R https://doi.org/10.1103/PhysRevX.11.021036