论文标题
约瑟夫森参数放大器的光关统计：检测问题
Photocount statistics of the Josephson parametric amplifier: a question of detection
论文作者
论文摘要
已知参数放大器会挤压电磁场的真空状态，从而导致可预测的光售在其输出处的统计数据。但是，最近的理论工作ARXIV：1112.4159预测了基于约瑟夫森交界器的放大器的统计分布非常不同。我们通过实验测试假设，并恢复预期的挤压真空统计。我们通过从理论上展示了如何取决于检测过程（从单个模式（我们的实验）到多模）的检测过程来解释这一差异，并在频率上完全分辨（如Arxiv：1112.4159）。
Parametric amplifiers are known to squeeze the vacuum state of the electromagnetic field, which results in predictable statistics of the photocounts at their output. However, recent theoretical work arXiv:1112.4159 predicts a very different statistical distribution for an amplifier based on a Josephson junction. We test the hypothesis experimentally and recover the expected squeezed vacuum statistics. We explain this discrepancy by showing theoretically how the photocount statistics is dictated by the detection process, from single mode (our experiment) to multimode, fully resolved in frequency (as in arXiv:1112.4159).
