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arXiv 1809.03403quant-ph
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用相干性验证量子存储器

Certifying quantum memories with coherence

Timo Simnacher, Nikolai Wyderka, Cornelia Spee, Xiao-Dong Yu, Otfried Gühne

摘要:

量子存储器是量子信息处理的重要组成部分。理想情况下,这些存储器保留了输入的量子特性。我们提出了衡量量子存储器质量的一般标准。然后,我们引入了一个质量测量的基础上的一致性满足这些标准,我们详细描述了量子比特的情况下。测量可以从稀疏的实验数据估计,并可以推广到表征其他积木,如量子门和隐形传态方案。

英文摘要:

Quantum memories are an important building block for quantum information processing. Ideally, these memories preserve the quantum properties of the input. We present general criteria for measures to evaluate the quality of quantum memories. Then, we introduce a quality measure based on coherence satisfying these criteria, which we characterize in detail for the qubit case. The measure can be estimated from sparse experimental data and may be generalized to characterize other building blocks, such as quantum gates and teleportation schemes.

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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