标题： 同相检测在相位噪声下的状态鉴别 显示英文标题

标题： Homodyne-like detection for state-discrimination in the presence of phase noise

摘要： 我们提出了一种创新的策略来区分受均匀相位噪声或高斯相位噪声影响的两个相干态。该策略基于低强度本振光条件下具有光子数分辨探测器的类似外差检测方案。检测方案的实验实现涉及两个混合光电探测器，其输出用于后处理以计算逐次光子数差异。该策略的性能通过错误概率来量化，作为区分含噪相干信号的误差概率与特征噪声参数的函数。 显示英文摘要

摘要： We propose an innovative strategy to discriminate between two coherent states affected by either uniform or gaussian phase noise. The strategy is based on a homodyne-like detection scheme with photon-number-resolving detectors in the regime of low-intensity local oscillator. The experimental implementation of the detection scheme involves two hybrid photodetectors, whose outputs are used in post processing to calculate the shot-by-shot photon-number difference. The performance of this strategy is quantified in terms of the error probability in discriminating the noisy coherent signals as a function of the characteristic noise parameters.