In situ imaging and manipulation of Cs-Li Bose-Fermi mixture

POSTER

Abstract

Quantum degenerate mixtures of bosonic and fermionic atoms are a powerful platform for quantum simulation, as well as rich physical systems in their own right. This poster reports on our investigation of cesium Bose-Einstein condensate immersed in a lithium degenerate Fermi gas. Based on in situ imaging and optical potential projection, we observe intriguing sound propagation dynamics in the mixture across an interspecies Feshbach resonance. Surprisingly, the sound mode persists across the resonance. Imaging the two species in each mixture, we investigate the beyond-mean-field correlations of bosons and fermions induced by interspecies interactions.

*This work was supported by the National Science Foundation under Grant No. PHY- 1511696 and PHY-2103542, by the Air Force Office of Scientific Research under award number FA9550-21-1-0447, and by the National Science Foundation Graduate Research Fellowship under Grant No. DGE 1746045.

Publication: Patel, Krutik, Geyue Cai, Henry Ando, and Cheng Chin. "Observation of sound propagation in a strongly interacting Bose-Fermi mixture." arXiv preprint arXiv:2205.14518 (2022).

Presenters

  • Henry Ando

    • University of Chicago

Authors

  • Henry Ando

    • University of Chicago

  • Geyue Cai

    • University of Chicago

  • Krutik S Patel

    • University of Chicago

  • Michael Rautenberg

    • Heidelberg University

  • Sarah McCusker

    • University of Chicago

  • Cheng Chin

    • Chicago
    • The James Franck Institute, Enrico Fermi Institute and Department of Physics, University of Chicago
    • University of Chicago