Robust solutions to hard problems

John Preskill

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Robust solutions to hard problems

机译：解决难题的可靠解决方案

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Twenty-first century computers could achieve astonishing speed by exploiting the principles of quantum mechanics. New techniques of quantum error correction will be essential to prevent those machines from crashing. According to the classical theory of computation, it is possible for a computing system to be fault tolerant—it can be designed so that it is sure to get the right answer even though its components occasionally fail. Now Emanuel Knill, Raymond Laflamme and Wojciech Zurek of Los Alamos National Laboratory have reported a similar result for quantum computers. They show that a properly designed quantum computer can achieve arbitrarily high reliability, provided that its components operate within a specified tolerance. Along with other recent developments in quantum error correction, this work has bolstered the hope that large-scale quantum computers will someday be realized.

机译：通过利用量子力学原理，二十一世纪的计算机可以达到惊人的速度。量子纠错的新技术对于防止这些机器崩溃至关重要。根据经典的计算理论，计算系统有可能是容错的-可以对其进行设计，以便即使组件偶尔发生故障，也可以确保获得正确的答案。现在，洛斯阿拉莫斯国家实验室的Emanuel Knill，Raymond Laflamme和Wojciech Zurek报告了量子计算机的类似结果。他们表明，设计合理的量子计算机可以达到任意高的可靠性，前提是其组件必须在指定的公差范围内运行。伴随着量子纠错的其他最新进展，这项工作增强了人们希望有朝一日实现大规模量子计算机的希望。

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《Nature》 |1998年第6668期|p.631-632|共2页
作者
John Preskill;
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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种 eng
中图分类自然科学总论;
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Robust solutions to hard problems

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