Research on Intrinsic Expansion Coefficients in Rydberg Atomic Heterodyne Receiving Link

IF 0.8 4区 物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY
Wu Fengchuan, An Qiang, Yao Jiawei, Fu Yunqi
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引用次数: 1

Abstract

Rydberg atom can respond to weak microwave electric field signal in real-time by using its electromagnetically induced transparency effect to realize down conversion of space microwave electric field signal, which can be used as a superheterodyne receiver. The Rydberg atom superheterodyne receiver is a new receiving system composed of Rydberg atoms, photodetectors, and electronic information processing modules. Presently, domestic and foreign scholars have conducted in-depth research on the physical response mechanism of Rydberg atomic superheterodyne receiving technology. However, no complete receiving link analysis model has been established, which is not conducive to optimizing its system performance. Based on the physical mechanism of the Rydberg atom responding to the microwave electric field, this paper introduces the concept of intrinsic expansion coefficient, establishes and experimentally verifies the receiving link model of the Rydberg atom superheterodyne receiver, and briefly discusses the influence of the intrinsic expansion coefficient on the system sensitivity and response characteristics, which provides theoretical guidance for the optimization of the performance of the Rydberg atom superheterodyne receiving system. Last, the Rydberg atomic and the electronic receiving links' sensitivity performance is discussed and compared.
里德堡原子外差接收链路本征膨胀系数的研究
里德伯原子利用其电磁感应透明效应对弱微波电场信号进行实时响应,实现空间微波电场信号的下变频,可用作超外差接收机。里德伯原子超外差接收机是由里德伯原子、光电探测器和电子信息处理模块组成的一种新型接收系统。目前,国内外学者对里德堡原子超外差接收技术的物理响应机制进行了深入的研究。然而,尚未建立完整的接收环节分析模型,不利于优化其系统性能。基于里德伯原子响应微波电场的物理机理,引入了本征膨胀系数的概念,建立并实验验证了里德伯原子超外差接收机的接收链路模型,并简要讨论了本征膨胀系数对系统灵敏度和响应特性的影响。为Rydberg原子超外差接收系统的性能优化提供了理论指导。最后,对里德伯原子链路和电子接收链路的灵敏度性能进行了讨论和比较。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
物理学报
物理学报 物理-物理:综合
CiteScore
1.70
自引率
30.00%
发文量
31245
审稿时长
1.9 months
期刊介绍: Acta Physica Sinica (Acta Phys. Sin.) is supervised by Chinese Academy of Sciences and sponsored by Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences. Published by Chinese Physical Society and launched in 1933, it is a semimonthly journal with about 40 articles per issue. It publishes original and top quality research papers, rapid communications and reviews in all branches of physics in Chinese. Acta Phys. Sin. enjoys high reputation among Chinese physics journals and plays a key role in bridging China and rest of the world in physics research. Specific areas of interest include: Condensed matter and materials physics; Atomic, molecular, and optical physics; Statistical, nonlinear, and soft matter physics; Plasma physics; Interdisciplinary physics.
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