QUANTUM ERROR CORRECTION AND FAULT-TOLERANT QUANTUM COMPUTING

被引：0

作者：

Gaitan, Frank ^{[1
,2
,3
]}

Li, Ran ^{[2
,3
,4
]}

机构：

[1] Southern Illinois Univ, Dept Phys, Carbondale, IL 62901 USA

[2] RIKEN, Adv Sci Inst, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan

[3] Japan Sci & Technol Agcy, JST, CREST, Kawaguchi, Saitama 3320012, Japan

[4] Kent State Univ, Dept Phys, North Canton, OH 44720 USA

来源：

DECOHERENCE SUPPRESSION IN QUANTUM SYSTEMS 2008 | 2010年 / 3卷

关键词：

Quantum Error Correction; Fault-Tolerant Quantum Computing; Accuracy Threshold Theorem; High-Fidelity Universal Quantum Gates; COMPUTATION; CODES; INTERFERENCE;

D O I：

10.1142/9789814295840_0002

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

We review the theories of quantum error correction, and of fault-tolerant quantum computing, and show how these powerful tools are combined to prove the accuracy threshold theorem for a particular error model. One of the theorem's assumptions is the availability of a universal set of unencoded quantum gates whose error probabilities P-e fall below a value known as the accuracy threshold P-a. For many, P-a similar to 10(-4) has become a rough estimate for the threshold so that quantum gates are anticipated to be approaching the accuracies needed for fault-tolerant quantum computing when P-e < 10(-4). We show how controllable quantum interference effects that arise during a type of non-adiabatic rapid passage can be used to produce a universal set of quantum gates whose error probabilities satisfy P-e < 10(-4). We close with a discussion of the current challenges facing an experimental implementation of this approach to reliable universal quantum computation.

引用

页码：53 / +

页数：3

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