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arXiv 2406.01701quant-ph
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Snowflake:一种分布式流解码器

Snowflake: A Distributed Streaming Decoder

Department of Materials, University of Oxford(牛津大学材料系);Center for Quantum Information and Quantum Biology, The University of Osaka(大阪大学量子信息与量子生物学中心)

Tim Chan

AI总结:

本文提出Snowflake解码器,针对表面码电路噪声,在准确性上比Union-Find解码器提高约25%,且具有更优的平均运行时间缩放特性。

摘要:

我们设计了Snowflake,一种量子错误校正解码器,针对表面码在电路级噪声下的表现,在准确性上比Union-Find解码器提高了约25%,且具有更优的平均运行时间缩放特性:亚二次而非三次方于码距。我们的解码器以流式方式运行,并具有分布式、本地的实现。在设计Snowflake时,我们提出了一种新的通用流解码方法,消除了现有窗口方法中由于窗口重叠导致的处理开销。

英文摘要:

We design Snowflake, a quantum error correction decoder that, for the surface code under circuit-level noise, is roughly 25% more accurate than the Union-Find decoder, with a better mean runtime scaling: subquadratic as opposed to cubic in the code distance. Our decoder runs in a streaming fashion and has a distributed, local implementation. In designing Snowflake, we propose a new method for general stream decoding that eliminates the processing overhead due to window overlap in existing windowing methods.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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