Journal
PHYSICAL REVIEW X
Volume 11, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevX.11.021036
Keywords
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Categories
Funding
- NSF [DMR-1607277]
- David and Lucile Packard Foundation [2016-65128]
- AFOSR Young Investigator Research Program [FA9550-16-1-0269]
- Alfred P. Sloan Foundation fellowship
- AFOSR
- AFOSR Multidisciplinary University Research Initiative
- DoE ASCR Quantum Testbed Pathfinder program [DE-SC0019040]
- U.S. Department of Energy [DE-SC0019449]
- DoE ASCR Accelerated Research in Quantum Computing program [DESC0020312]
- NSF PFCQC program
- ARO Multidisciplinary University Research Initiative
- NSF PFC at JQI
- NSERC
- NIST NRC Research Postdoctoral Associateship grant
- ARL CDQI
- FRQNTof Canada
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We induce strong nonlocal interactions in a 2D Fermi gas in an optical lattice using Rydberg dressing, measure the interactions, and study the lifetime of the gas in the presence of tunneling, finding that tunneling does not reduce the lifetime. Investigating the interplay of nonlocal interactions with tunneling, we find that strong nearest-neighbor interactions slow down the relaxation dynamics of charge-density waves in the gas. Our work opens the door for quantum simulations of systems with strong nonlocal interactions such as extended Fermi-Hubbard models.
We induce strong nonlocal 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 nonlocal 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 nonlocal interactions such as extended Fermi-Hubbard models.
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