Quantum Low-Density Parity-Check Codes

Quantum Low-Density Parity-Check Codes
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量子低密度校验码

DOI:
10.1103/prxquantum.2.040101
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发表时间:
2021-10-11
期刊:
影响因子:
9.7
通讯作者:
Eberhardt, Jens Niklas
Eberhardt, Jens Niklas
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
Breuckmann, Nikolas P.;Eberhardt, Jens Niklas

文献摘要

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量子纠错是可扩展量子计算不可缺少的组成部分。在这个观点中,我们讨论了一类特殊的量子码,称为“量子低密度奇偶校验(LDPC)码”。我们讨论的码是表面码的替代品,表面码是目前实现量子容错的主要候选码。我们介绍了量子LDPC码的动物园,并讨论了它们使量子计算机在噪声方面具有鲁棒性的潜力。特别是,我们解释了与某些产品结构相关的量子LDPC码理论的最新进展,并讨论了该领域的开放问题。
Quantum error correction is an indispensable ingredient for scalable quantum computing. In this Perspective we discuss a particular class of quantum codes called "quantum low-density parity-check (LDPC) codes." The codes we discuss are alternatives to the surface code, which is currently the leading candidate to implement quantum fault tolerance. We introduce the zoo of quantum LDPC codes and discuss their potential for making quantum computers robust with regard to noise. In particular, we explain recent advances in the theory of quantum LDPC codes related to certain product constructions and discuss open problems in the field.