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A multi-band atomic candle with microwave-dressed Rydberg atoms

Cai, Yafen; Shi, Shuai; Zhou, Yijia; Yu, Jianhao; Tian, Yali; Li, Yitong; Zhang, Kuan; Du, Chenhao; Li, Weibin; Li, Lin; Cai, Yafen; Shi, Shuai

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Yafen Cai

Shuai Shi

Yijia Zhou

Jianhao Yu

Yali Tian

Yitong Li

Kuan Zhang

Chenhao Du

Associate Professor

Lin Li

Yafen Cai

Shuai Shi


Stabilizing important physical quantities to atom-based standards lies at the heart of modern atomic, molecular and optical physics, and is widely applied to the field of precision metrology. Of particular importance is the atom-based microwave field amplitude stabilizer, the so-called atomic candle. Previous atomic candles are realized with atoms in their ground state, and hence suffer from the lack of frequency band tunability and small stabilization bandwidth, severely limiting their development and potential applications. To tackle these limitations, we employ microwave-dressed Rydberg atoms to realize a novel atomic candle that features multi-band frequency tunability and large stabilization bandwidth. We demonstrate amplitude stabilization of microwave field from C-band to Ka-band, which could be extended to quasi-DC and terahertz fields by exploring abundant Rydberg levels. Our atomic candle achieves stabilization bandwidth of 100 Hz, outperforming previous ones by more than two orders of magnitude. Our simulation indicates the stabilization bandwidth can be further increased up to 100 kHz. Our work paves a route to develop novel electric field control and applications with a noise-resilient, miniaturized, sensitive and broadband atomic candle.


Cai, Y., Shi, S., Zhou, Y., Yu, J., Tian, Y., Li, Y., …Shi, S. (2023). A multi-band atomic candle with microwave-dressed Rydberg atoms. Frontiers of Physics, 18(1), Article 12302.

Journal Article Type Article
Acceptance Date Oct 12, 2022
Online Publication Date Nov 23, 2022
Publication Date Feb 1, 2023
Deposit Date Oct 18, 2022
Publicly Available Date Nov 24, 2023
Journal Frontiers of Physics
Electronic ISSN 2095-0470
Peer Reviewed Peer Reviewed
Volume 18
Issue 1
Article Number 12302
Public URL
Publisher URL


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