量子电子学报

• 量子光学 • 上一篇    下一篇

量子无标度网络在随机攻击与蓄意故障下的纠缠渗流

王语晗,马 雷   

  1. 华东师范大学物理与材料学院,上海 200241
  • 出版日期:2017-09-28 发布日期:2019-06-13
  • 通讯作者: 马 雷(1965- ),山东人,副教授,主要研究方向为量子信息与量子通讯。 E-mail:lma@phy.ecnu.edu.cn
  • 作者简介:王语晗(1990- ),吉林人,研究生,主要研究方向为量子信息与量子通讯。Email: 51140602117@ecnu.cn
  • 基金资助:
    Supported by National Natural Science Foundation of China(国家自然科学基金, 11174081)

Entanglement percolation of quantum scale-free network under random attack and targeted failure

WANG Yuhan,MA Lei   

  1. Institute of Physics and Materials, East China Normal University, Shanghai 200241, China
  • Published:2017-09-28 Online:2019-06-13

摘要: 通过在节点间建立成对纠缠态,构造了一个量子无标度网络。通过局域化纠缠交换的方式对网络中的节点进行随机攻击以及等概率地使网络中的节点发生蓄意故障,对比其纠缠渗流阈值变化。结果表明随机攻击下的阈值明显变小,蓄意故障下的阈值明显增大,体现了量子无标度网络的鲁棒性与脆弱性;纠缠浓缩下的量子无标度网络在随机攻击与蓄意故障下仍具有鲁棒性与脆弱性,但较纠缠浓缩前的鲁棒性变弱,说明真实网络具有较好的鲁棒性。

关键词: 量子无标度网络, 纠缠渗流, 鲁棒性, 脆弱性, 纠缠浓缩

Abstract: A quantum scale-free network is built up by establishing pairwise entanglement state. The entanglement percolation threshold values change is compared by random attacking on nodes in network by the way of localization entanglement swapping, and making the nodes targeted failure with the same probability. Results show that the threshold values decrease significantly under random attack and increase significantly under targeted failure, which reflects robustness and fragility of the quantum scale-free network. The scale-free quantum network with entanglement distillation is still robust and fragile under random attack and targeted failure, but which is relatively weaker than that without distillation. It indicates that the real network has a better robustness.

Key words: quantum scale-free network, entanglement percolation, robustness , fragility, entanglement distillation