论文标题
仅使用强度信息的铃铛非局部性
Bell nonlocality with intensity information only
论文作者
论文摘要
每当唯一的实验信息是通过未知数量的粒子在实验中产生的强度时，我们就会解决检测两分钟非局部性的问题。我们指出，这种情况自然发生在贝尔实验中，当晶体被强脉冲，较远的来源泵送时，晶体被泵送时，在飞行过程中，颗粒在飞行过程中遭受不同的延迟，在钟形实验中使用活细胞作为照片检测器，以及配对信息的钟形实验。我们表明，尽管贝尔非局部性随着颗粒数量的增加而减小，如果当事方可以区分任意的强度差异，并且可见性大于$ 0.98 $，则仍然可以通过使用高达$ 15 $粒子的通量在实验上检测到贝尔的非倾销性。我们表明，可以在钟形实验中使用当前设备对该预测进行测试，在该实验中，配对信息被物理删除，但需要假设公平采样。
We address the problem of detecting bipartite Bell nonlocality whenever the only experimental information are the intensities produced in each run of the experiment by an unknown number of particles. We point out that this scenario naturally occurs in Bell experiments with parametric down-conversion when the crystal is pumped by strong pulses, in Bell tests with distant sources and in which particles suffer different delays during their flight, in Bell experiments using living cells as photo detectors, and in Bell experiments where the pairing information is physically removed. We show that, although Bell nonlocality decreases as the number of particles increases, if the parties can distinguish arbitrarily small differences of intensities and the visibility is larger than $0.98$, then Bell nonlocality can still be experimentally detected with fluxes of up to $15$ particles. We show that this prediction can be tested with current equipment in a Bell experiment where pairing information is physically removed, but requires the assumption of fair sampling.
