论文标题
三角网络中的部分自我测试和随机认证
Partial self-testing and randomness certification in the triangle network
论文作者
论文摘要
可以在具有独立源的网络中没有输入（即每个方使用固定测量设置）的输入（即每个方）的量子非局部性。在这里，我们考虑对环网络的影响，并表明可以从观察到的相关性中部分表征或进行自我测试。将这些结果应用于三角网络，使我们能够证明Renou等人的非局部分布。 [物理。莱特牧师。 123，140401（2019）]要求（i）（i）所有来源产生的纠缠量最少，（ii）所有局部测量都纠缠在一起，并且（iii）每个局部结果都具有最小的熵。因此，我们表明，三角网络允许真正的网络量子非局部性和可认证的随机性。
Quantum nonlocality can be demonstrated without inputs (i.e. each party using a fixed measurement setting) in a network with independent sources. Here we consider this effect on ring networks, and show that the underlying quantum strategy can be partially characterized, or self-tested, from observed correlations. Applying these results to the triangle network allows us to show that the nonlocal distribution of Renou et al. [Phys. Rev. Lett. 123, 140401 (2019)] requires that (i) all sources produce a minimal amount of entanglement, (ii) all local measurements are entangled, and (iii) each local outcome features a minimal entropy. Hence we show that the triangle network allows for genuine network quantum nonlocality and certifiable randomness.
