17-22 July 2022
Royal Conservatory of Music, Toronto
America/Toronto timezone

Towards a Fermi Gas Microscope with Tunable Lattice Geometry

19 Jul 2022, 17:00
1h 30m
Hart House (Hart House)

Hart House

Hart House

7 Hart House Cir, Toronto, ON M5S 3H3
Poster presentation Degenerate gases, many-body physics, and quantum simulation Poster session


We report on experimental progress towards quantum gas microscopy of ultracold lithium-6 in low-noise optical lattices with tunable geometry. By overlapping a superlattice beam over a two-dimensional square lattice, our setup enables the site-resolved study of Fermi-Hubbard physics in triangular, hexagonal, dimerized and quasi-1D geometries. Such nonstandard bandstructures are believed to host a variety of exotic strongly correlated phases that are hard to characterize in condensed-matter systems, such as the proposed spin liquid state in the triangular lattice Hubbard model or the pseudogap phase of the square lattice model. Dynamically changing the lattice geometry further allows preparation protocols that may help reduce temperatures below the limits of current experiments. Together with low heating rates provided by technical improvements on lattice noise and stability, this may help reach the yet unexplored low-temperature regime of the Hubbard phase diagram.

Presenter name Martin Lebrat
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Primary authors

Martin Lebrat (Harvard University) Muqing Xu (Harvard University) Lev H Kendrick (Harvard University) Anant Kale (Harvard University) Prof. Markus Greiner

Presentation Materials

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