Distance measures to compare real and ideal quantum processes
Distance measures to compare real and ideal quantum processes
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DOI：
10.1103/physreva.71.062310
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发表时间：
2005-06-01
影响因子：
2.9
通讯作者：
Nielsen, MA
中科院分区：
文献类型：
--
作者：
Gilchrist, A;Langford, NK;Nielsen, MA
随着实验实现的不断成功，确定量子信息处理的“黄金标准”至关重要，这是一种可用于比较和对比不同实验的距离的单一度量。我们列举了一组标准，这样的距离测量必须满足这些标准才能在实验和理论上有意义。然后，我们根据这些标准评估各种可能的措施，然后就用于表征量子信息处理的最佳措施提出建议。
With growing success in experimental implementations it is critical to identify a "gold standard" for quantum information processing, a single measure of distance that can be used to compare and contrast different experiments. We enumerate a set of criteria that such a distance measure must satisfy to be both experimentally and theoretically meaningful. We then assess a wide range of possible measures against these criteria, before making a recommendation as to the best measures to use in characterizing quantum information processing.