arXivDaily arXiv每日学术速递 周一至周五更新
arXiv quant-ph/9712048quant-ph
收藏

容错量子计算

Fault-tolerant quantum computation

John Preskill

摘要:

量子纠错的发现极大地改善了量子计算技术的长期前景。可以保护编码的量子信息免受由于与环境的不受控制的相互作用或由于量子逻辑运算的不完美实现而产生的错误。即使在恢复过程中偶尔发生错误,从错误中恢复也可以有效地工作。此外,编码的量子信息可以在没有严重错误传播的情况下被处理。原则上,只要每个门的平均错误概率小于某个临界值,即精度阈值,就可以可靠地执行任意长的量子计算。将内在的容错性结合到量子计算硬件的设计中是可能的,也许是通过调用拓扑Aharonov-Bohm相互作用来处理量子信息。

英文摘要:

The discovery of quantum error correction has greatly improved the long-term prospects for quantum computing technology. Encoded quantum information can be protected from errors that arise due to uncontrolled interactions with the environment, or due to imperfect implementations of quantum logical operations. Recovery from errors can work effectively even if occasional mistakes occur during the recovery procedure. Furthermore, encoded quantum information can be processed without serious propagation of errors. In principle, an arbitrarily long quantum computation can be performed reliably, provided that the average probability of error per gate is less than a certain critical value, the accuracy threshold. It may be possible to incorporate intrinsic fault tolerance into the design of quantum computing hardware, perhaps by invoking topological Aharonov-Bohm interactions to process quantum information.

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。

↑