Towards Ultracold Fermions in the Optical Kagome Lattice

POSTER

Abstract

Our efforts are focused on producing a degenerate fermi gas of 40K atoms and loading it into an optical kagome lattice. This special lattice geometry is geometrically frustrated and exhibits a flat band that enhances interaction effects. Our system allows us to easily study many-body effects such as flat band ferromagnetism. We utilize a specific lattice setup that allows us to arbitrarily translate the lattice allowing for Floquet-type dynamics and wide-range manipulation of the quasimomentum. We describe experimental progress towards creating degenerate fermi gases of 40K using sympathetic cooling with 87Rb, loading a degenerate fermi gas into the optical kagome lattice and generating arbitrary lattice potentials. In addition, future directions of research are presented.

* We acknowledge support from the NSF QLCI program through grant OMA-2016245 and also NSF grant PHY-1806362 and 2309300, and from the ARO through the MURI program (grant W911NF-17-1-0323).

Presenters

  • Malte Nils Schwarz

    University of California, Berkeley

Authors

  • Malte Nils Schwarz

    University of California, Berkeley

  • Shao-wen Chang

    University of California, Berkeley

  • Rowan Duim

    University of California, Berkeley

  • Dan M Stamper-Kurn

    University of California, Berkeley

  • Nikhil Maserang

    University of California, Berkeley

  • John Ciavarra

    University of California, Berkeley