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arXiv 1104.5507quant-phcond-mat.othermath-phmath.MPphysics.chem-ph
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量子计算与控制中的芝诺效应

Zeno effect for quantum computation and control

G. A. Paz-Silva, A. T. Rezakhani, J. M. Dominy, D. A. Lidar

摘要:

众所周知,量子Zeno效应可以通过投影测量来保护特定的量子态不受退相干的影响。在这里,我们结合弱测量理论与稳定剂量子纠错和检测码。我们推导出严格的性能界限,这表明芝诺效应可以用来保护适当编码的任意状态到任意精度,而在同一时间允许通用的量子计算或量子控制。

英文摘要:

It is well known that the quantum Zeno effect can protect specific quantum states from decoherence by using projective measurements. Here we combine the theory of weak measurements with stabilizer quantum error correction and detection codes. We derive rigorous performance bounds which demonstrate that the Zeno effect can be used to protect appropriately encoded arbitrary states to arbitrary accuracy, while at the same time allowing for universal quantum computation or quantum control.

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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