Estimation and initialization of quantum network via continuous measurement on single node
Estimation and initialization of quantum network via continuous measurement on single node
复制标题
通过单节点连续测量来估计和初始化量子网络
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
N. Yamamoto
中科院分区：
文献类型：
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作者：
Yuzuru Kato;N. Yamamoto
为了在量子网络上进行可靠和一致的量子信息处理，网络结构必须完全已知，并且必须在其上准备所需的初始状态.本文考虑了只有一个节点可访问的自旋网络，并提供了基于连续测量的方法来满足上述两个要求.更具体地说，连续获得的测量结果被用来更新估计的网络结构，收敛到真实的结构与高概率，对于后一个问题，我们进一步采用自适应测量方案，确定性地驱动状态到一个期望的目标状态的网络初始化。
For reliable and consistent quantum information processing carried out on a quantum network, the network structure must be fully known and a desired initial state has to be prepared on it. In this paper, we consider a spin network with only a single node accessible and provide continuous-measurement-based methods to fulfill the above two requirements. More specifically, the measurement results continuously obtained are used to update the estimate of the network structure, which converges to the true structure with high probability; for the latter problem, we further employ an adaptive measurement scheme to deterministically drive the state to a desired target state for network initialization.
DOI：
10.1214/09-aoas313
发表时间：
2010-06-01
期刊：
The annals of applied statistics
影响因子：
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作者：
Snijders TA;Koskinen J;Schweinberger M
通讯作者：
Schweinberger M