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arXiv · 2512.09849

Programmable Assembly of Ground State Fermionic Tweezer Arrays

Naman Jain·Jin Zhang·Marcus Culemann·Philipp M. Preiss
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Abstract

We demonstrate deterministic preparation of arbitrary two-component product states of fermionic $^6$Li atoms in an 8$\times$8 optical tweezer array, achieving motional ground-state fidelities above $98.5\,\%$. Leveraging the large differential magnetic moments for spin-resolution, with parallelized site- and number-resolved control, our approach addresses key challenges for low-entropy quantum state engineering. Combined with high-fidelity spin-, site-, and density-resolved readout within a single $20\,\mathrm{\mu s}$ exposure, and $3\,\mathrm{s}$ experimental cycles, these advances establish a fast, scalable, and programmable architecture for fermionic quantum simulation.

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Naman Jain, Jin Zhang, Marcus Culemann, Philipp M. Preiss. 2025-12-10. Programmable Assembly of Ground State Fermionic Tweezer Arrays. https://doi.org/10.1103/fsmh-dz71

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