Architecture for fast implementation of qLDPC codes with optimized Rydberg gates

2024/04/29 by Poole, C., Graham, T. M., Perlin, M. A. +2 · 8 citations
#Atomic Physics (physics.atom-ph) #FOS: Physical sciences #Quantum Physics (quant-ph)

paper · doi:10.48550/arxiv.2404.18809

Abstract

We propose an implementation of bivariate bicycle codes (Nature \bf 627, 778 (2024)) based on long-range Rydberg gates between stationary neutral atom qubits. An optimized layout of data and ancilla qubits reduces the maximum Euclidean communication distance needed for non-local parity check operators. An optimized Rydberg gate pulse design enables \sf CZ entangling operations with fidelity \mathcal F>0.999 at a distance greater than 12~μ\rm m. The combination of optimized layout and gate design leads to a quantum error correction cycle time of ∼ 1.28~\rm ms for a [[144,12,12]] code, nearly a factor of two improvement over previous designs.

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