Realization of a Rydberg-dressed extended Bose Hubbard model
arxiv(2024)
Abstract
The competition of different length scales in quantum many-body systems leads
to various novel phenomena, including the emergence of correlated dynamics or
non-local order. To access and investigate such effects in an itinerant
lattice-based quantum simulator, it has been proposed to introduce tunable
extended-range interactions using off-resonant optical coupling to Rydberg
states. However, experimental realizations of such "Rydberg dressing" have so
far mostly concentrated on spin systems without motion. Here, we overcome a
number of experimental challenges limiting previous work and realize an
effective one-dimensional extended Bose-Hubbard model (eBHM). Harnessing our
quantum gas microscope, we probe the correlated out-of-equilibrium dynamics of
extended-range repulsively-bound pairs at low filling, and
kinetically-constrained "hard rods" at half filling. Near equilibrium, we
observe density ordering when adiabatically turning on the extended-range
interactions. Our results demonstrate the versatility of Rydberg dressing in
engineering itinerant optical lattice-based quantum simulators and pave the way
to realizing novel light-controlled extended-range interacting quantum
many-body systems.
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