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Probing the Quench Dynamics of Antiferromagnetic Correlations in a 2D Quantum Ising Spin System
- Source :
- Physical Review X, Vol 8, Iss 2, p 021069 (2018)
- Publication Year :
- 2018
- Publisher :
- American Physical Society, 2018.
-
Abstract
- 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.
Details
- Language :
- English
- ISSN :
- 21603308
- Volume :
- 8
- Issue :
- 2
- Database :
- Directory of Open Access Journals
- Journal :
- Physical Review X
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.23a87bae831f4789b111440d80c32044
- Document Type :
- article
- Full Text :
- https://doi.org/10.1103/PhysRevX.8.021069