Journal
PHYSICAL REVIEW X
Volume 8, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevX.8.021069
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Funding
- NSF [DMR-1607277]
- David and Lucile Packard Foundation [2016-65128]
- AFOSR [FA9550-16-1-0269]
- Alfred P. Sloan Foundation fellowship
- DoD through NDSEG
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1607277] Funding Source: National Science Foundation
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Simulating the real-time evolution of quantum spin systems far out of equilibrium poses a major theoretical challenge, especially in more than one dimension. We experimentally explore quench dynamics in a two-dimensional Ising spin system with transverse and longitudinal fields. We realize the system with a near unit-occupancy atomic array of over 200 atoms obtained by loading a spin-polarized band insulator of fermionic lithium into an optical lattice and induce short-range interactions by direct excitation to a low-lying Rydberg state. Using site-resolved microscopy, we probe antiferromagnetic correlations in the system after a sudden quench from a paramagnetic state and compare our measurements to numerical calculations using state-of-the-art techniques. We achieve many-body states with longer-range antiferromagnetic correlations by implementing a near-adiabatic quench of the longitudinal field and study the buildup of correlations as we vary the rate with which we change the field.
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