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arXiv · 2604.11000

Compiler Framework for Directional Transport in Zoned Neutral Atom Systems with AOD Assistance: A Hybrid Remote CZ Approach

Lingyi Kong·Chen Huang·Zhemin Zhang·Yidong Zhou·Xiangyu Ren·Shaochen Li·Zhiding Liang
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Abstract

We present a directional-transport (DT)-based remote CZ gate and compiler for zoned neutral-atom arrays that overcomes movement-bound entanglement limitations. Current AOD-based shuttling faces row/column non-crossing constraints, device-speed limits, and hardware-restricted range - bottlenecks for long-distance connectivity. Our approach reserves AODs for channel setup and micro-tuning while making DT the default for remote entanglement. Under antiblockade, a detuning-modulated pi-pulse sequence drives directional transport of a Rydberg excitation along a dynamic and resettable ancilla corridor, realizing a CZ gate between stationary, non-adjacent qubits. This cuts entangling-stage duration by approximately 50 to 90 percent versus AOD-only baselines and enables long-distance connectivity beyond objective-limited shuttling.

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Lingyi Kong, Chen Huang, Zhemin Zhang, Yidong Zhou, Xiangyu Ren, Shaochen Li, Zhiding Liang. 2026-04-13. Compiler Framework for Directional Transport in Zoned Neutral Atom Systems with AOD Assistance: A Hybrid Remote CZ Approach. https://doi.org/10.1145/3770743.3804196

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