A quick-test method for the two-photon spectral correlation quantification

A quick-test method for the two-photon spectral correlation quantification
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双光子光谱相关定量的快速测试方法

DOI:
10.1016/j.ijleo.2022.168906
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发表时间:
2022-03
期刊:
影响因子:
3.1
通讯作者:
Shougang Zhang
Shougang Zhang
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Junjie Xing;Xiao Xiang;Runai Quan;Tao Liu;Ruifang Dong;Shougang Zhang

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我们提出了一种基于双通道滤波器和色散元件的双光子光谱相关量化快速测试方法,其中光谱相关系数可以很容易地从符合测量中直接可测量的参数来评估。对两个不同光谱相关的双光子源进行了验证实验,实验结果与联合光谱测量结果吻合较好。由于其简单的实现和快速的测量在几秒钟内,该方案是有希望的光谱相关量化的即插即用的工具,这将有助于各种量子信息应用的按需光谱相关。
We propose a quick-test method for the two-photon spectral correlation quantification based on a dual-channel filter and a dispersive element, where the spectral correlation coefficient can be readily evaluated from directly measurable parameters in a coincidence measurement. Verified experiments have been conducted on two biphoton sources with different types of spectral correlation, presenting nice agreement with the joint spectrum measurement. Because of its simple implementation and fast measurement within seconds, this scheme is promising to be a plug-and-play tool for spectral correlation quantification, which would facilitate various quantum information applications with on-demand spectral correlation.
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