论文标题
量子互联网在随机崩溃和故意攻击下
Quantum Internet under random breakdowns and intentional attacks
论文作者
论文摘要
量子网络将在分布式量子信息处理中发挥关键作用。随着网络大小的增加，不可避免的是网络级别的错误，例如随机分解和故意攻击。因此，重要的是要了解大规模量子网络的鲁棒性，类似于经典的互联网。对于指数网络（例如Waxman网络），错误只是重新参数化网络并导致量子容量的线性减小，而误差的可能性。尽管在连接性方面具有先前发现的鲁棒性，但在随机分解下，在随机分解下发生了相同的线性衰减。但是，在攻击的情况下，无尺度量子网络的能力显示出随着攻击分数的增加而急剧衰减。我们的结果适用于基于纤维的各种量子通信的量子互联网，并为量子网络的稳健性提供了未来构建的影响。
Quantum networks will play a key role in distributed quantum information processing. As the network size increases, network-level errors like random breakdown and intentional attack are inevitable; therefore, it is important to understand the robustness of large-scale quantum networks, similar to what has been done for the classical counterpart---the Internet. For exponential networks such as Waxman networks, errors simply re-parameterize the network and lead to a linear decrease of the quantum capacity with the probability of error. The same linear decay happens for scale-free quantum networks under random breakdowns, despite the previously discovered robustness in terms of the connectivity. In presence of attack, however, the capacity of scale-free quantum networks shows a sharp exponential decay with the increasing attack fraction. Our results apply to quantum internet based on fibers for all kinds of quantum communications and provide implications for the future construction of quantum networks with regard to its robustness.
