2026/04/13 by Lingyi Kong, Chen Huang, Zhemin Zhang +4 · 1 voice
Computer Science · Physics and Astronomy · #Atom (system on chip) #Channel (broadcasting) #Cold Atom Physics and Bose-Einstein Condensates #Compiler #Energetic neutral atom #Quantum Information and Cryptography #Quantum and electron transport phenomena #Range (aeronautics) #Sequence (biology) #cs.AR #quant-ph
paper · pdf · doi:10.1145/3770743.3804196
openalex publication_date 2026/04/13 · arxiv published 2026/04/13 · arxiv updated 2026/04/13 · openalex created_date 2026/04/16 · openalex updated_date 2026/08/05
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.