论文标题
通过终点测量统计数据的量子对相干的诊断
Diagnostics of quantum-gate coherences via end-point-measurement statistics
论文作者
论文摘要
量子相干性是具有几种理论和技术后果的量子物理学中的中心成分。在这项工作中，我们考虑了一个值得的数字，该图形编码有关量子门平均产生的相干性如何受到单一错误（相干噪声源）的影响。我们提供的数值证据表明，此类信息是由栅极输出状态上局部能量测量的统计数据很好地捕获的。然后，通过量子光学设置中获取的实验数据来证实这些发现。
Quantum coherence is a central ingredient in quantum physics with several theoretical and technological ramifications. In this work we consider a figure of merit encoding the information on how the coherence generated on average by a quantum gate is affected by unitary errors (coherent noise sources). We provide numerical evidences that such information is well captured by the statistics of local energy measurements on the output states of the gate. These findings are then corroborated by experimental data taken in a quantum optics setting.
