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Rydberg atomic sensors and receivers have enabled sensitive and traceable measurements of RF fields at a wide range of frequencies. Here we demonstrate the detection of electric field amplitude in the extremely high frequency (EHF) band, at…

Rydberg quantum sensors are sensitive to radio-frequency fields across an ultra-wide frequency range spanning megahertz to terahertz electromagnetic waves resonant with Rydberg atom dipole transitions. Here we demonstrate an atomic…

Atomic Physics · Physics 2024-07-12 Remy Legaie , Georg Raithel , David A. Anderson

Detecting microwave signals over a wide frequency range has numerous advantages as it enables simultaneous transmission of a large amount of information and access to more spectrum resources. This capability is crucial for applications such…

Rydberg atoms, due to their large polarizabilities and strong transition dipole moments, have been utilized as sensitive electric field sensors. While their capability to detect modulated signals has been previously demonstrated, these…

Rydberg atom-based sensors use atoms dressed by lasers to detect and measure radio frequency electromagnetic fields. The absorptive properties of the atomic gas, configured as a Rydberg atom-based sensor, change in the presence of a radio…

Quantum sensing using Rydberg atoms offers unprecedented opportunities for next-generation radar systems, transcending classical limitations in miniaturization and spectral agility. Implementing this paradigm for radar sensing, this work…

Atomic Physics · Physics 2025-06-23 Minze Chen , Tianqi Mao , Zhiao Zhu , Haonan Feng , Ge Gao , Zhonghuai Wu , Wei Xiao , Zhongxiang Li , Dezhi Zheng

Rydberg atom-based electrometry enables traceable electric field measurements with high sensitivity over a large frequency range, from gigahertz to terahertz. Such measurements are particularly useful for the calibration of radio frequency…

Quantum Physics · Physics 2017-04-26 Santosh Kumar , Haoquan Fan , Harald Kübler , Akbar J. Jahangiri , James P. Shaffer

Microwave sensing has important applications in areas such as data communication and remote sensing, so it has received much attention from international academia, industry, and governments. Atomic wireless sensing uses the strong response…

Atomic Physics · Physics 2023-05-29 Bang Liu , Li-Hua Zhang , Zong-Kai Liu , Zi-An Deng , Dong-Sheng Ding , Bao-Sen Shi , Guang-Can Guo

In this article we describe the basic principles of Rydberg atom-based RF sensing and present the development of atomic pulsed RF detection and RF phase sensing establishing capabilities pertinent to applications in communications and…

Quantum Physics · Physics 2021-08-12 David Alexander Anderson , Rachel Elizabeth Sapiro , Georg Raithel

Electromagnetically induced transparency (EIT) in atomic systems involving Rydberg states is known to be a sensitive probe of incident microwave (MW) fields, in particular those resonant with Rydberg-to-Rydberg transitions. Here we propose…

Atomic Physics · Physics 2022-10-06 Sebastian Borówka , Uliana Pylypenko , Mateusz Mazelanik , Michał Parniak

Rydberg atoms exhibit remarkable sensitivity to electromagnetic fields, making them promising candidates for revolutionizing field sensors. Unlike conventional antennas, they neither disturb the measured field nor necessitate intricate…

Rydberg-atom receivers aim for ultra-high sensitivity to microwave fields through various techniques, but receiving satellite signals has remained a significant challenge, due to the difficulty of capturing weak microwaves over long…

Quantum Physics · Physics 2025-06-19 Mignwei Lei , Jianquan Zhang , Qun Luo , Zhentao Zhang , Ming Wang , Meng Shi

Rydberg atomic receivers (RARs) leverage the quantum coherence of highly excited atoms to overcome the intrinsic physical limitations of conventional radio frequency receivers (RFRs), particularly in sensitivity, and bandwidth. This…

Signal Processing · Electrical Eng. & Systems 2025-08-01 Yin Zhang , Jiayi Zhang , Bokai Xu , Yuanbin Chen , Zhilong Liu , Jiakang Zheng , Enyu Shi , Ziheng Liu , Tierui Gong , Wei E. I. Sha , Chau Yuen , Shi Jin , Bo Ai

Rydberg atom-based RF sensors offer distinct advantages over conventional dipole antennas for electric field detection. This paper presents a system model and performance analysis of a Rydberg atom-based quantum radar, which employs optical…

Quantum Physics · Physics 2026-01-12 Sourav Banerjee , Neel Kanth Kundu

We demonstrate an atomic radio-frequency (RF) receiver and spectrum analyzer based on thermal Rydberg atoms coupled to a planar microwave waveguide. We use an off-resonant RF heterodyne technique to achieve continuous operation for carrier…

Atomic Physics · Physics 2021-05-24 David H. Meyer , Paul D. Kunz , Kevin C. Cox

The Rydberg atomic quantum receivers (RAQR) are emerging quantum precision sensing platforms designed for receiving radio frequency (RF) signals. It relies on creation of Rydberg atoms from normal atoms by exciting one or more electrons to…

Signal Processing · Electrical Eng. & Systems 2025-10-15 Tierui Gong , Aveek Chandra , Chau Yuen , Yong Liang Guan , Rainer Dumke , Chong Meng Samson See , Mérouane Debbah , Lajos Hanzo

Rydberg atom-based radio frequency electromagnetic field sensors are drawing wide-spread interest because of their unique properties, such as small size, dielectric construction, and self-calibration. These photonic sensors use lasers to…

Low frequency communication has a wide range of applications in the fields of satellite detection, underground mining, disaster relief. Rydberg atom sensor has rapidly developed in recent years, capitalizing on its calibration-free…

Atomic Physics · Physics 2024-08-20 Yipeng Xie , Mingwei Lei , Meng Shi

Deep subwavelength RF imaging with atomic Rydberg sensors has overcome fundamental limitations of traditional antennas and enabled ultra-wideband detection of omni-directional time varying fields all in a compact form factor. However, in…

We realize and model a Rydberg-state atom interferometer for measurement of phase and intensity of radio-frequency (RF) electromagnetic waves. A phase reference is supplied to the atoms via a modulated laser beam, enabling atomic…

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