Site-resolved measurement of the spin-correlation function in the Fermi-Hubbard model
Abstract
Exotic phases of matter can emerge from strong correlations in quantum many-body systems. Quantum gas microscopy affords the opportunity to study these correlations with unprecedented detail. Here, we report site-resolved observations of antiferromagnetic correlations in a two-dimensional, Hubbard-regime optical lattice and demonstrate the ability to measure the spin-correlation function over any distance. We measure the in situ distributions of the particle density and magnetic correlations, extract thermodynamic quantities from comparisons to theory, and observe statistically significant correlations over three lattice sites. The temperatures that we reach approach the limits of available numerical simulations. The direct access to many-body physics at the single-particle level demonstrated by our results will further our understanding of how the interplay of motion and magnetism gives rise to new states of matter.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Sep 16, 2016
- Source ID
- 10.1126/science.aag1430
Entities
People
- Anton Mazurenko
- Christie S Chiu
- Daniel M. Greif
- Geoffrey Ji
- Markus Greiner
- Maxwell F. Parsons
Organizations
- Air Force Office of Scientific Research
- Harvard University
- National Science Foundation