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arXiv 1102.1618quant-phmath.FA
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无测量一般噪声下量子纠错的恢复

Recovery in quantum error correction for general noise without measurement

Chi-Kwong Li, Mikio Nakahara, Yiu-Tung Poon, Nung-Sing Sze, Hiroyuki Tomita

摘要:

众所周知,在量子纠错(OQEC)中,人们可以在没有伴随式测量的情况下进行量子纠错。然而,物理实现可能具有挑战性,特别是当恢复过程涉及高阶投影算子和超算子时。我们使用算子理论,以改善OQEC,使执行总是可以完成由一个部分跟踪操作的酉门。给出的例子表明,我们的纠错方案优于现有的在各种情况下。

英文摘要:

It is known that one can do quantum error correction without syndrome measurement, which is often done in operator quantum error correction (OQEC). However, the physical realization could be challenging, especially when the recovery process involves high-rank projection operators and a superoperator. We use operator theory to improve OQEC so that the implementation can always be done by unitary gates followed by a partial trace operation. Examples are given to show that our error correction scheme outperforms the existing ones in various scenarios.

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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