量子位元
量子计算机
容错
量子纠错
计算机科学
架空(工程)
量子卷积码
数学
常量(计算机编程)
量子
拓扑(电路)
离散数学
量子力学
物理
分布式计算
组合数学
操作系统
程序设计语言
出处
期刊:Quantum Information & Computation
[Rinton Press]
日期:2014-11-01
卷期号:14 (15&16): 1339-1371
被引量:54
标识
DOI:10.26421/qic14.15-16-5
摘要
What is the minimum number of extra qubits needed to perform a large fault-tolerant quantum circuit? Working in a common model of fault-tolerance, I show that in the asymptotic limit of large circuits, the ratio of physical qubits to logical qubits can be a constant. The construction makes use of quantum low-density parity check codes, and the asymptotic overhead of the protocol is equal to that of the family of quantum error-correcting codes underlying the fault-tolerant protocol.
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