A near-Hz repetition-rate fermionic Mott insulator

Ultracold fermionic systems have emerged as a leading platform for studying strongly correlated quantum matter, offering direct access to regimes that challenge both classical numerical methods and qubit-based architectures. Here, we present a high-repetition-rate fermionic quantum gas microscope optimized for fast data acquisition. A low-temperature Mott insulator can be prepared and detected in a few second timescale, enabled by a novel on-site rapid evaporative cooling scheme in a millikelvin-deep two-dimensional optical lattice. Efficient spin- and single-site-resolved imaging is achieved using a high-power, tightly focused light sheet, which can be configured into multiple layers. These fast experimental cycles mitigate limitations imposed by slow thermal drifts and allow the collection of increased statistics, providing a more detailed characterization of higher-order spin correlations in the doped Fermi-Hubbard model.