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arXiv quant-ph/9809054quant-ph
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高效的容错量子计算

Efficient fault-tolerant quantum computing

Andrew M. Steane

摘要:

讨论了采用高效量子纠错码的容错量子计算方法。引入了几种新技术来限制恢复之前或恢复期间的错误累积。得到了几类合格的量子码,并展示了好的候选者。这允许对鲁棒量子计算的允许错误率和最小开销进行新的分析。研究发现,在普遍存在的随机、不相关误差的标准噪声模型下,量子计算机只需要比其中包含的逻辑机器大一个数量级就可以可靠。例如,放大22倍,门错误率为$10^{-5}$阶,足以允许大型量子算法,如千位数的因式分解。

英文摘要:

Fault tolerant quantum computing methods which work with efficient quantum error correcting codes are discussed. Several new techniques are introduced to restrict accumulation of errors before or during the recovery. Classes of eligible quantum codes are obtained, and good candidates exhibited. This permits a new analysis of the permissible error rates and minimum overheads for robust quantum computing. It is found that, under the standard noise model of ubiquitous stochastic, uncorrelated errors, a quantum computer need be only an order of magnitude larger than the logical machine contained within it in order to be reliable. For example, a scale-up by a factor of 22, with gate error rate of order $10^{-5}$, is sufficient to permit large quantum algorithms such as factorization of thousand-digit numbers.

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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