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arXiv quant-ph/0610088quant-ph
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两种经典线性码的量子纠错子系统码

Quantum Error Correcting Subsystem Codes From Two Classical Linear Codes

Dave Bacon, Andrea Casaccino

摘要:

量子纠错的基本观点是,可以通过在多个独立出错的量子系统中对该量子信息进行适当编码来保护量子信息。近年来人们认识到,由于量子信息编码的最普遍方法是将其编码到一个子系统中,因此在传统的量子纠错子空间码之外,存在一种新的量子纠错形式。这些新的量子纠错子系统码与子空间码的不同之处在于,它们的量子纠错程序可以比相关的子空间码简单得多。本文提出了一类由两个经典线性码构造的量子纠错子系统码。这些码是量子纠错子空间码的子系统版本,量子纠错子空间码是Shor的原始量子纠错子空间码的推广。对于每一个短型代码,我们提出的代码提供了一个相当大的节省在其错误恢复例程中所需的稳定器测量的数量。

英文摘要:

The essential insight of quantum error correction was that quantum information can be protected by suitably encoding this quantum information across multiple independently erred quantum systems. Recently it was realized that, since the most general method for encoding quantum information is to encode it into a subsystem, there exists a novel form of quantum error correction beyond the traditional quantum error correcting subspace codes. These new quantum error correcting subsystem codes differ from subspace codes in that their quantum correcting routines can be considerably simpler than related subspace codes. Here we present a class of quantum error correcting subsystem codes constructed from two classical linear codes. These codes are the subsystem versions of the quantum error correcting subspace codes which are generalizations of Shor's original quantum error correcting subspace codes. For every Shor-type code, the codes we present give a considerable savings in the number of stabilizer measurements needed in their error recovery routines.

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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