Robust quantum error syndrome extraction by classical coding

Robust quantum error syndrome extraction by classical coding
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通过经典编码进行鲁棒量子错误综合症提取

DOI:
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发表时间:
2014
期刊:
2014 IEEE International Symposium on Information Theory
影响因子:
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通讯作者:
T. Brun
T. Brun
中科院分区:
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文献类型:
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作者:
A. Ashikhmin;C. Lai;T. Brun

文献摘要

被引文献

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量子计算机实现过程中的一个重要问题是保护量子信息免受退相干的影响。在容错量子计算中,用于测量错误综合征(error syndromes)的电路本身是有故障的;为了将综合征测量误差的影响降至最低,需要对综合征进行重复测量。本文介绍了一种基于经典编码的方案,以使这一过程更稳健和/或减少所需的资源及测量时间。我们使用EXIT函数分析了基于低密度生成矩阵(LDGM)码的特定实现方式。
An important issue in the implementation of a quantum computer is to protect quantum information from decoherence. In fault-tolerant quantum computation, the circuits used to measure the error syndromes are themselves faulty; to minimize the effect of syndrome measurement errors, the syndromes are measured repeatedly. This paper introduces a scheme based on classical codes to make this process more robust and/or reduce the needed resources and measurement time. We analyze particular implementations based on low-density generator matrix (LDGM) codes using EXIT functions.