Probing Spin-Imbalanced Fermi Gases in low dimensions with a Continuum Quantum Gas Microscope

ORAL

Abstract

Interacting Fermi gases with spin-imbalance provide a platform for exploring exotic pairing mechanisms, including the elusive Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state. We present a study of spin-imbalanced ultracold Fermi gas of ^{6}Li in low dimensions using a continuum quantum gas microscope. This apparatus enables single-atom imaging of the quasi-1D and quasi-2D gas in continuum, providing direct access to local spin correlations and measurements. We prepare the system near a Feshbach resonance with controlled spin polarization to investigate the stability of superfluid phase against magnetization. We report on the current status of the experiment and our exploration of the interplay between pairing and polarization in the strongly interacting 1D and 2D Fermi gas.

*This work was supported by the NSF CUA and PHY-2012110, AFOSR (FA9550- 23-1-0402 and MURI), ARO (W911NF-23-1-0382 and DURIP), DOE (DE-SC0024622), DARPA APAQuS and the Vannevar Bush Faculty Fellowship (ONR N00014- 19-1-2631)

Publication: Manuscript in preparation.

Presenters

  • Sungjae Chi

    • Massachusetts Institute of Technology

Authors

  • Sungjae Chi

    • Massachusetts Institute of Technology
  • Ruixiao Yao

    • Massachusetts Institute of Technology
  • Mingxuan Wang

    • Massachusetts Institute of Technology
  • Richard J Fletcher

    • Massachusetts Institute of Technology
  • Martin W. Zwierlein

    • Massachusetts Institute of Technology