We present the first evidence of multi-photon detection using a conventional superconducting nanowire single-photon detector, indicating number resolution up to four photons. The observed multi-photon detection statistics are consistent with the predictions of our model.

中文翻译：

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使用常规超导纳米线单光子检测器进行多光子检测

我们提供了使用常规超导纳米线单光子检测器进行多光子检测的第一个证据，表明多达四个光子的数字分辨率。观察到的多光子检测统计与我们模型的预测一致。