Experimental adaptive Bayesian tomography
Experimental adaptive Bayesian tomography
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DOI：
10.1103/physreva.87.062122
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发表时间：
2013-06-28
影响因子：
2.9
通讯作者：
Kulik, S. P.
中科院分区：
文献类型：
--
作者：
Kravtsov, K. S.;Straupe, S. S.;Kulik, S. P.
我们报告了一个自适应量子态层析成像协议的实验实现。我们的方法利用贝叶斯方法进行统计推断，并且自然地针对自适应策略进行定制。对于纯状态，我们观察到接近N-1缩放的不忠与注册事件的总数，而最好的非自适应协议只允许N-1/2缩放。实验是针对极化量子比特进行的，但这种方法很容易适应任何维度。
We report an experimental realization of an adaptive quantum state tomography protocol. Our method takes advantage of a Bayesian approach to statistical inference and is naturally tailored for adaptive strategies. For pure states, we observe close to N-1 scaling of infidelity with overall number of registered events, while the best nonadaptive protocols allow for N-1/2 scaling only. Experiments are performed for polarization qubits, but the approach is readily adapted to any dimension.