Accelerating the assembly of defect-free atomic arrays with maximum parallelisms

Abstract

Defect-free atomic arrays have been demonstrated as a scalable and fully-controllable platform for quantum simulations and quantum computations. To push the qubit size limit of this platform further, we design an integrated measurement and feedback system, based on field programmable gate array (FPGA), to quickly assemble two-dimensional defect-free atomic array using maximum parallelisms. The total time cost of the rearrangement is first reduced by processing atom detection, atomic occupation analysis, rearrangement strategy formulation, and acousto-optic deflectors (AOD) driving signal generation in parallel in time. Then, by simultaneously moving multiple atoms in the same row (column), we save rearrangement time by parallelism in space. To best utilize these parallelisms, we propose a new algorithm named Tetris algorithm to reassemble atoms to arbitrary target array geometry from two-dimensional stochastically loaded atomic arrays. For an $L\times L$ target array geometry, the number of moves scales as $L$, and the total rearrangement time scales at most as $L^2$. We present the overall performance for different target geometries, and demonstrate a significant reduction in rearrangement time and the potential to scale up defect-free atomic array system to thousands of qubits.

References in corpus (9)

• Probing many-body dynamics on a 51-atom quantum simulator
• Many-Body Physics with Individually-Controlled Rydberg Atoms
• An atom-by-atom assembler of defect-free arbitrary 2d atomic arrays
• Demonstration of multi-qubit entanglement and algorithms on a programmable neutral atom quantum computer
• Enhanced atom-by-atom assembly of arbitrary tweezers arrays
• Single Atoms with 6000-Second Trapping Lifetimes in Optical-Tweezer Arrays at Cryogenic Temperatures
• In-situ equalization of single-atom loading in large-scale optical tweezers arrays
• Parallel assembly of arbitrary defect-free atom arrays with a multi-tweezer algorithm
• Efficient preparation of 2D defect-free atom arrays with near-fewest sorting-atom moves

Cited by in corpus (11)

• A tweezer array with 6100 highly coherent atomic qubits
• An atomic boson sampler
• AI-Enabled Rapid Assembly of Thousands of Defect-Free Neutral Atom Arrays with Constant-time-overhead
• Observation of Near-Critical Kibble-Zurek Scaling in Rydberg Atom Arrays
• A high optical access cryogenic system for Rydberg atom arrays with a 3000-second trap lifetime
• Coprime Bivariate Bicycle Codes and Their Layouts on Cold Atoms
• Tunnel-coupled optical microtraps for ultracold atoms
• Fast real-time arbitrary waveform generation using graphic processing units
• Model-Based Real-Time Synthesis of Acousto-Optically Generated Laser-Beam Patterns and Tweezer Arrays
• Dynamic Hologram Generation with Automatic Differentiation
• Astigmatism-free 3D Optical Tweezer Control for Rapid Atom Rearrangement