Preservation of bipartite pseudoentanglement in solids using dynamical decoupling.
Preservation of bipartite pseudoentanglement in solids using dynamical decoupling.
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DOI：
10.1103/physrevlett.106.040501
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发表时间：
2011-01
影响因子：
8.6
通讯作者：
Ya Wang;X. Rong;P. Feng;Wanjie Xu;Bo Chong;Jihu Su;J. Gong;Jiangfeng Du
中科院分区：
文献类型：
--
作者：
Ya Wang;X. Rong;P. Feng;Wanjie Xu;Bo Chong;Jihu Su;J. Gong;Jiangfeng Du
未来量子技术的一个关键挑战是保护脆弱的纠缠不受环境诱导的退相干的影响。在这里，我们证明了实验动力学解耦可以保持在硅系统中的磷施主的二分赝纠缠。特别地，在无退相干控制的情况下，赝纠缠态的寿命从0.4 μs延长到了30 μs.
A crucial challenge for future quantum technologies is to protect fragile entanglement against environment-induced decoherence. Here we demonstrate experimentally that dynamical decoupling can preserve bipartite pseudoentanglement in phosphorous donors in a silicon system. In particular, the lifetime of pseudoentangled states is extended from 0.4 μs in the absence of decoherence control to 30 μs in the presence of a two-flip dynamical decoupling sequence.