True photocounting statistics of multiple on-off detectors
True photocounting statistics of multiple on-off detectors
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DOI：
10.1103/physreva.85.023820
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发表时间：
2012-02-17
影响因子：
2.9
通讯作者：
Agarwal, G. S.
中科院分区：
文献类型：
--
作者：
Sperling, J.;Vogel, W.;Agarwal, G. S.
我们推导出一个封闭的光计数公式，包括噪声计数和有限的量子效率，光nnumber分辨探测器的基础上开-关探测器。它适用于检测方案，如阵列检测器和多路复用设置。这一结果使我们有可能将相应的测量计数统计与任意量子态的真实光子数统计进行比较。应用光计数公式，对Fock态、压缩态和奇相干态的光子数进行了鉴别。它说明了相干态，我们的公式是必不可少的正确解释的量子效应观察到这样的设备。
We derive a closed photocounting formula, including noise counts and a finite quantum efficiency, for photo-nnumber-resolving detectors based on on-off detectors. It applies to detection schemes such as array detectors and multiplexing setups. The result renders it possible to compare the corresponding measured counting statistics with the true photon number statistics of arbitrary quantum states. The photocounting formula is applied to the discrimination of photon numbers of Fock states, squeezed states, and odd coherent states. It is illustrated for coherent states that our formula is indispensable for the correct interpretation of quantum effects observed with such devices.