A Fermi Gas Microscope with a Tunable Lattice Geometry

POSTER

Abstract

We report on a next-generation optical lattice for quantum gas microscopy of ultracold fermionic lithium. By phase-locking and interfering the lattice beams, the lattice geometry can be tuned to realize triangle, honeycomb, and non-bipartite square geometries, enabling us to study strongly correlated phases in the Hubbard model beyond the standard square lattice band structure. By continuously tuning from a square to a triangular geometry, we were able to introduce geometric frustration into the system and investigate its magnetic order upon doping. We are actively exploring novel quantum phases in other geometries by combining the tunable lattice with a digital micromirror device.

*We acknowledge support from the National Science Foundation, the Office of Naval Research, QuEra Computing, the Army Research Office, the NSF Graduate Research Fellowship Program, the Harvard Quantum Initiative, the Swiss National Science Foundation and the Max Planck/Harvard Research Center for Quantum Optics, the Gordon and Betty Moore Foundation.

Publication: arXiv preprint 2212.13983

Presenters

  • Lev H Kendrick

    • Harvard University

Authors

  • Lev H Kendrick

    • Harvard University

  • Muqing Xu

    • Harvard University

  • Anant Kale

    • Harvard University

  • Youqi Gang

    • Harvard University

  • Martin Lebrat

    • Harvard University

  • Markus Greiner

    • Harvard University