Rydberg Atomic Receivers for Multi-Band Communications and Sensing

作者：Mingyao Cui, Qunsong Zeng, Minze Chen, Zhanwei Wang, Tianqi Mao, Dezhi Zheng, Kaibin Huang · 发表于：IEEE Transactions on Wireless Communications · 年份：2026 · DOI：10.1109/twc.2026.3663194 · 被引用次数：2 · 研究领域：Atomic and Subatomic Physics Research、Cold Atom Physics and Bose-Einstein Condensates、Quantum optics and atomic interactions

Harnessing multi-level electron transitions, Rydberg Atomic REceivers (RAREs) can detect wireless signals across a wide range of frequency bands, from Megahertz to Terahertz. This capability enables multi-band wireless communications and sensing (CommunSense). Existing research on multi-band RAREs primarily focuses on experimental demonstrations, lacking a tractable model to mathematically characterize their mechanisms. This issue leaves the multi-band RARE as a black box and poses challenges in its practical applications. To fill in this gap, this paper investigates the underlying mechanism of multi-band RAREs and explores their optimal performance. For the first time, an analytical transfer function with a closed-form expression for multi-band RAREs is derived by solving the quantum response of Rydberg atoms. It shows that a multi-band RARE simultaneously serves as amulti-band atomic mixerfor down-converting multi-band signals and amulti-band atomic amplifierthat reflects its sensitivity to each band. Further analysis of the atomic amplifier unveils that the intrinsic gain at each frequency band can be decoupled into aglobal gainterm and aRabi attentionterm. The former determines the overall sensitivity of a RARE to all frequency bands of wireless signals. The latter influences the allocation of the overall sensitivity to each frequency band, representing a unique attention mechanism of multi-band RAREs. The optimal design of the global gain is provided to maximize the over...