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arXiv 2202.04600quant-ph
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玻色态的阈值检测统计

Threshold detection statistics of bosonic states

Jacob F. F. Bulmer, Stefano Paesani, Rachel S. Chadwick, Nicolás Quesada

摘要:

在量子光子学中,区分真空和一个或多个光子的阈值探测器,如超导纳米线和雪崩光电二极管,通常用于测量光的福克和高斯态。尽管是标准的测量方案,但对于具有阈值检测器的测量概率没有通用的封闭形式表达,除非接受粗略近似或组合缩放求和。在这里,我们提出了新的矩阵函数来填补这一空白。我们开发的Bristolian和循环Torontonian函数的阈值检测Fock和位移高斯状态,分别,并将它们连接到彼此和现有的矩阵函数。通过对大多数光的量子态给出统一的玻色统计图像,我们为光子量子技术的设计和分析提供了新的工具。

英文摘要:

In quantum photonics, threshold detectors, distinguishing between vacuum and one or more photons, such as superconducting nanowires and avalanche photodiodes, are routinely used to measure Fock and Gaussian states of light. Despite being the standard measurement scheme, there is no general closed form expression for measurement probabilities with threshold detectors, unless accepting coarse approximations or combinatorially scaling summations. Here, we present new matrix functions to fill this gap. We develop the Bristolian and the loop Torontonian functions for threshold detection of Fock and displaced Gaussian states, respectively, and connect them to each other and to existing matrix functions. By providing a unified picture of bosonic statistics for most quantum states of light, we provide novel tools for the design and analysis of photonic quantum technologies.

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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