Generation of large scale hyperentangled photonic GHZ states with an error-detected pattern
Generation of large scale hyperentangled photonic GHZ states with an error-detected pattern
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DOI：
10.1140/epjd/e2019-90582-5
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发表时间：
2019-06
期刊：
影响因子：
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通讯作者：
A-Peng Liu;Xue Han;Liu-Yong Cheng;Qi Guo;S. Su;Hong‐Fu Wang;Shou Zhang
中科院分区：
文献类型：
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作者：
A-Peng Liu;Xue Han;Liu-Yong Cheng;Qi Guo;S. Su;Hong‐Fu Wang;Shou Zhang
摘要我们提出了一种通过简单的展开机制产生大规模超纠缠光子GHZ态的方案。利用该方案，可以产生一个GHZ型Bell对，并将一个非光子超纠缠GHZ态扩展为一个单位保真度为2n个光子的超纠缠GHZ态。该方案工作在差错检测模式下，对意外的物理差错具有较强的鲁棒性，在弱耦合和强耦合两种情况下都能工作。最后，我们用目前获得的实验参数对该方案的可行性进行了评估，表明该方案在现有实验技术下是可行的。
AbstractWe present a scheme for generating large-scale hyperentangled photonic GHZ states via a simple expansion mechanism. With the present scheme, a GHZ-type Bell pair can be created and ann-photon hyperentangled GHZ state can be expanded to a 2n-photon hyperentangled GHZ state with unit fidelity in principle. The scheme works in an error-detected pattern, it is robust against the unexpected physical errors, and can work in both the weak coupling and strong coupling regimes. Finally, we assess the feasibility of this scheme with currently achieved experimental parameters, showing that it is feasible with current experimental technology.Graphical abstract