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  • Open Access

Programmable Assembly of Ground State Fermionic Tweezer Arrays

Naman Jain1, Jin Zhang1, Marcus Culemann1, and Philipp M. Preiss1,2,*

  • *Contact author: philipp.preiss@mpq.mpg.de
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Phys. Rev. Lett. 136, 223402 – Published 5 June, 2026

DOI: https://doi.org/10.1103/fsmh-dz71

Abstract

We demonstrate deterministic preparation of arbitrary two-component product states of fermionic Li6 atoms in an 8×8 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  μs exposure, and 3 s experimental cycles, these advances establish a fast, scalable, and programmable architecture for fermionic quantum simulation.

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Phys. Rev. Lett. 136, 223402– Published 5 June, 2026
  • Received 19 December 2025
  • Accepted 6 April 2026
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Open access publication funded by the Max Planck Society.

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