Iterative Assembly of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" overflow="scroll"><mml:msup><mml:mi/><mml:mn>171</mml:mn></mml:msup></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" overflow="scroll"><mml:mi>Yb</mml:mi></mml:math> Atom Arrays with Cavity-Enhanced Optical Lattices
Matthew A. Norcia, Hyosim Kim, William B. Cairncross, M. B. Stone, Albert Ryou, M. Jaffé, M. O. Brown, Katrina Barnes, P. Battaglino, Thomas C. Bohdanowicz, Alexander L. Brown, Kayleigh Cassella, Chi‐An Chen, Robin Coxe, Daniel Crow, J. Epstein, C. Griger, Edward C. Halperin, Frederic Hummel, A. M. W. Jones, Jonathan M. Kindem, Jonathan P. King, Krish Kotru, J. Lauigan, Ming Li, M. Lu, E. Megidish, Josip Marjanović, Mickey McDonald, Thomas Mittiga, Juan A. Muniz, S. Narayanaswami, C. Nishiguchi, T. Paule, Kelly Ann Pawlak, Linqing Peng, Kristen L. Pudenz, David Rodríguez Pérez, A. Smull, D. T. Stack, Miroslav Urbánek, R. J. M. van de Veerdonk, Zachary Vendeiro, Laura Wadleigh, Thomas Wilkason, Ting Wu, Xin Xie, E. Zalys-Geller, Xuesong Zhang, Benjamin Bloom
Abstract
Assembling and maintaining large arrays of individually addressable atoms is a key requirement for continued scaling of neutral-atom-based quantum computers and simulators. In this work, we demonstrate a new paradigm for assembly of atomic arrays, based on a synergistic combination of optical tweezers and cavity-enhanced optical lattices, and the incremental filling of a target array from a repetitively filled reservoir. In this protocol, the tweezers provide microscopic rearrangement of atoms, while the cavity-enhanced lattices enable the creation of large numbers of optical traps with sufficient depth for rapid low-loss imaging of atoms. We apply this protocol to demonstrate near-deterministic filling (99% per-site occupancy) of 1225-site arrays of optical traps. Because the reservoir is repeatedly filled with fresh atoms, the array can be maintained in a filled state indefinitely. We anticipate that this protocol will be compatible with mid-circuit reloading of atoms into a quantum processor, which will be a key capability for running large-scale error-corrected quantum computations whose durations exceed the lifetime of a single atom in the system. Published by the American Physical Society 2024