arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2112.02201cond-mat.mes-hallphysics.chem-phphysics.opticsquant-ph
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高阶光子统计作为揭示等离子体腔中隐藏激发态的新工具

Higher-Order Photon Statistics as a New Tool to Reveal Hidden Excited States in a Plasmonic Cavity

Philipp Stegmann, Satyendra Nath Gupta, Gilad Haran, Jianshu Cao

摘要:

从光子相关测量中获得的最著名的量是$g^{(m)}$ ~关联函数。在这里,我们介绍了一种新的程序来评估这些相关函数的基础上,高阶阶乘累积量$C_{\text{F},m}$,积分的时间依赖性的关联函数,即,总结不同时间段的可用信息。在一个系统的方式,高阶关联函数的信息内容,以及光子等待时间的分布考虑。我们的方法大大提高了探测相关性的灵敏度,而且,在实验中对有限的计数效率和时间分辨率是鲁棒的。即使在短时间内无法访问$g^{(m)}$的情况下,也可以应用该方法。我们使用新的评估方案来分析耦合到单个量子点的等离子体激元腔的光子发射。我们得出的标准,必须持有,如果系统可以描述一个通用的Jaynes-Cummings模型。一个违反的标准可以解释的存在下,一个额外的激发量子点状态。

英文摘要:

Among the best known quantities obtainable from photon correlation measurements are the $g^{(m)}$~correlation functions. Here, we introduce a new procedure to evaluate these correlation functions based on higher-order factorial cumulants $C_{\text{F},m}$ which integrate over the time dependence of the correlation functions, i.e., summarize the available information at different time spans. In a systematic manner, the information content of higher-order correlation functions as well as the distribution of photon waiting times is taken into account. Our procedure greatly enhances the sensitivity for probing correlations and, moreover, is robust against a limited counting efficiency and time resolution in experiment. It can be applied even in case $g^{(m)}$ is not accessible at short time spans. We use the new evaluation scheme to analyze the photon emission of a plasmonic cavity coupled to a single quantum dot. We derive criteria which must hold if the system can be described by a generic Jaynes-Cummings model. A violation of the criteria can be explained by the presence of an additional excited quantum dot state.

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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