Optical spectral features and electric field inversion method for Rydberg atoms under ultra-low frequency electric field

IF 5.6 2区 物理与天体物理 Q1 OPTICS
Dongping Xiao, Sheng Yan, Ling Chen, Huaiqing Zhang
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Abstract

The quantum measurement of the microwave electric field based on Rydberg atoms developed in recent years has shown promise for enhancing accuracy, sensitivity and stability. However, the study of ultra-low frequency electric field measurements in power systems is still in its early stages, presenting new challenges for Rydberg-based measurement techniques. In this work, a ladder-type two-photon three-level structure of Cs atoms is selected, and the corresponding experimental system is constructed. Two kinds of laser control schemes, which are referred to as mismatch and match measurement schemes, are then proposed, and the quantum effect’s optical spectrum is obtained by using the two measurement schemes. After these measured spectral properties are compared, the match measurement scheme is chosen for real-time measurement of ultra-low frequency electric fields. Additionally, dynamic models of the interactions among the laser field, ultra-low frequency electric field and atoms are derived, on the basis of which theoretical simulations are being conducted to study the effects of the input parameters of the electric field and laser power on the optical spectrum. On the basis of the optical spectral features, an inversion method for the excitation electric field in real time is proposed, and its effectiveness is demonstrated.

超低频电场作用下Rydberg原子的光谱特征及电场反演方法
近年来发展起来的基于里德伯原子的微波电场量子测量技术,在提高精度、灵敏度和稳定性方面具有广阔的前景。然而,电力系统中超低频电场测量的研究仍处于起步阶段,这给基于rydberg的测量技术提出了新的挑战。本文选择了阶梯型双光子三能级结构的Cs原子,并构建了相应的实验体系。然后提出了两种激光控制方案,即失配和匹配测量方案,并利用这两种测量方案获得了量子效应的光谱。在对这些频谱特性进行比较后,选择匹配测量方案进行超低频电场的实时测量。建立了激光场、超低频电场和原子相互作用的动力学模型,并在此基础上进行了理论模拟,研究了电场输入参数和激光功率对光谱的影响。根据激发电场的光谱特征,提出了一种实时反演激发电场的方法,并验证了该方法的有效性。
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
EPJ Quantum Technology
EPJ Quantum Technology Physics and Astronomy-Atomic and Molecular Physics, and Optics
CiteScore
7.70
自引率
7.50%
发文量
28
审稿时长
71 days
期刊介绍: Driven by advances in technology and experimental capability, the last decade has seen the emergence of quantum technology: a new praxis for controlling the quantum world. It is now possible to engineer complex, multi-component systems that merge the once distinct fields of quantum optics and condensed matter physics. EPJ Quantum Technology covers theoretical and experimental advances in subjects including but not limited to the following: Quantum measurement, metrology and lithography Quantum complex systems, networks and cellular automata Quantum electromechanical systems Quantum optomechanical systems Quantum machines, engineering and nanorobotics Quantum control theory Quantum information, communication and computation Quantum thermodynamics Quantum metamaterials The effect of Casimir forces on micro- and nano-electromechanical systems Quantum biology Quantum sensing Hybrid quantum systems Quantum simulations.
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