光子数鉴别探测器的光统计学
Towards photostatistics from photon-number discriminating detectors
摘要：
我们研究了具有数分辨能力的光电探测器的性质。在没有暗计数的情况下，由于其有限的量子效率，利用这种检测器的光电检测只能消除入射场对应于小于检测到的光子数的光子数的可能性。我们表明，这样的{ \em非光子}数鉴别探测器，但是，提供了一个有用的工具，即使在暗计数的存在下，在重建的入射场的光子数分布。
英文摘要：
We study the properties of a photodetector that has a number-resolving capability. In the absence of dark counts, due to its finite quantum efficiency, photodetection with such a detector can only eliminate the possibility that the incident field corresponds to a number of photons less than the detected photon number. We show that such a {\em non-photon} number-discriminating detector, however, provides a useful tool in the reconstruction of the photon number distribution of the incident field even in the presence of dark counts.
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