Optimization of periodic single-photon sources
Optimization of periodic single-photon sources
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DOI：
10.1103/physreva.90.053834
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发表时间：
2014-08
影响因子：
2.9
通讯作者：
P. Adam;M. Mechler;I. Santa;M. Koniorczyk
中科院分区：
文献类型：
--
作者：
P. Adam;M. Mechler;I. Santa;M. Koniorczyk
我们引入了一个理论框架，该框架适用于描述迄今为止实现或提出的所有空间和时间复用周期性单光子源。我们的模型考虑了所有可能相关的损失机制。对已知方案的统计分析表明，通过适当选择空间复用器的复用单元数量或复用时间间隔以及输入平均光子对数量，可以优化复用系统，以便在各种损失参数集下产生最大单光子概率，并揭示了最优存在的物理原因。我们提出了一种在体光学中实现的新颖的时分复用方案，根据目前的分析，该方案在实验上实现时将具有良好的性能。根据文献中已知的实验，选择可行的实验参数，可以提供 85% 的单光子概率。
We introduce a theoretical framework which is suitable for the description of all spatial and time-multiplexed periodic single-photon sources realized or proposed thus far. Our model takes into account all possibly relevant loss mechanisms. This statistical analysis of the known schemes shows that multiplexing systems can be optimized in order to produce maximal single-photon probability for various sets of loss parameters by the appropriate choice of the number of multiplexed units of spatial multiplexers or multiplexed time intervals and the input mean photon pair number, and reveals the physical reasons of the existence of the optimum. We propose a novel time-multiplexed scheme to be realized in bulk optics, which, according to the present analysis, would have promising performance when experimentally realized. It could provide a single-photon probability of 85\% with a choice of experimental parameters which are feasible according to the experiments known from the literature.