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Room-temperature storage of quantum entanglement using decoherence-free subspace in a solid-state spin system

zqyin 添加于 2017-6-13 09:29 | 954 次阅读 | 0 个评论

作者
Wang F, Huang Y-Y, Zhang Z-Y, Zu C, Hou P-Y, Yuan X-X, Wang W-B, Zhang W-G, He L, Chang X-Y, Duan L-M
摘要
We experimentally demonstrate room-temperature storage of quantum entanglement using two nuclear spins weakly coupled to the electronic spin carried by a single nitrogen-vacancy center in diamond. We realize universal quantum gate control over the three-qubit spin system and produce entangled states encoded within the decoherence-free subspace of the two nuclear spins. By injecting arbitrary collective noise, we demonstrate that the decoherence-free entangled state has coherence time longer than that of other entangled states by an order of magnitude in our experiment.
详细资料
- 关键词: quant-ph
- 文献种类:手稿
- 期卷页: 2017年
- 日期: 2017-6-11
- 发布方式: arXiv e-prints
- 备注:http://arxiv.org/abs/1706.03313v1
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