Optimizing Rydberg Gates for Logical-Qubit Performance

Jandura, Sven, Thompson, Jeff D., Pupillo, Guido · 2023 · PRX Quantum

| 编号 NA080 | 主题 原生门、寻址、脉冲与标定 | DOI 10.1103/prxquantum.4.020336 |

摘要

摘要保留原文（英文）

摘要取自 arXiv / 出版方元数据，未作翻译，以保证与原文一致。

2023 · PRX Quantum Robust gate sequences are widely used to reduce the sensitivity of gate operations to experimental imperfections. Typically, the optimization minimizes the average gate error, however, recent work in quantum error correction has demonstrated that the performance of encoded logical qubits is sensitive to not only the average error rate, but also the type of errors that occur. Here, we present a family of Rydberg blockade gates for neutral atom qubits that are robust against two common, major imperfections: intensity inhomogeneity and Doppler shifts. These gates outperform existing gates for moderate or large imperfections. We also consider the logical performance of these gates in the context of an erasure-biased qubit based on metastable ${}^{171}$Yb. In this case, we observe that the robust gates outperform existing gates for even very small values of the imperfections, because they maintain the native large bias towards erasure errors for these qubits. These results significantly reduce the laser stability and atomic temperature requirements to achieve fault-tolerant quantum computing with neutral atoms. The approach of optimizing gates for logical qubit performance may be applied to other qubit platforms.

全文共 16 页；文本提取件位于 .extracted/papers/NA080.txt（不随站点发布）。

本站词条在引用该文献时，会以 wikilink（sources/NA080）链接到本页；右侧「反向链接」面板自动列出所有引用它的词条。