14-Qubit Entanglement: Creation and Coherence
14-Qubit Entanglement: Creation and Coherence
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DOI：
10.1103/physrevlett.106.130506
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发表时间：
2011-03-31
影响因子：
8.6
通讯作者：
Blatt, Rainer
中科院分区：
文献类型：
--
作者：
Monz, Thomas;Schindler, Philipp;Blatt, Rainer
我们报道了高达14个量子比特的Greenberger-Horne-Zeilinger态的创建。通过研究多达8个离子随时间的相干性，我们观察到与量子比特数的平方成正比的衰变。观察到的衰变与假设系统受关联的高斯位相噪声影响的理论模型一致。这一模型适用于目前发展为量子计算和量子计量学的大多数实验系统。
We report the creation of Greenberger-Horne-Zeilinger states with up to 14 qubits. By investigating the coherence of up to 8 ions over time, we observe a decay proportional to the square of the number of qubits. The observed decay agrees with a theoretical model which assumes a system affected by correlated, Gaussian phase noise. This model holds for the majority of current experimental systems developed towards quantum computation and quantum metrology.