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arXiv quant-ph/0501100quant-ph
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低量子效率下由开/关测量推断光子分布的两步MaxLik-MaxEnt策略

A two-step MaxLik-MaxEnt strategy to infer photon distribution from on/off measurement at low quantum efficiency

Andrea R. Rossi, Matteo G. A. Paris

摘要:

提出了一种基于最大熵(ME)原理,在量子效率很低的情况下,通过开/关测量来推断光子分布的方法。该方法包括两个步骤:首先利用极大似然估计从开/关统计量中提取光子分布的某些时刻,然后应用ME原理推断量子态,进而推断光子分布。给出了相干态和数态的模拟实验结果。

英文摘要:

A method based on Maximum-Entropy (ME) principle to infer photon distribution from on/off measurements performed with few and low values of quantum efficiency is addressed. The method consists of two steps: at first some moments of the photon distribution are retrieved from on/off statistics using Maximum-Likelihood estimation, then ME principle is applied to infer the quantum state and, in turn, the photon distribution. Results from simulated experiments on coherent and number states are presented.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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