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Frequency response estimation and equalization for Rydberg atom electro-optic conversion systems
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DOI：10.1140/epjqt/s40507-026-00551-6.png)
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Abstract
En 中文
Rydberg atomic receivers (RARs) have emerged as a promising candidate for next-generation wireless communication systems due to their broadband tunability, SI traceability, compact configuration, and omnidirectional reception. Currently, the primary challenge hindering the further large-scale deployment of RARs lies in the low data transmission rates, which is attributed to the narrow instantaneous bandwidth. This work improves data transmission rates from a signal processing perspective, proposing a cost-effective and operationally efficient solution. The Rydberg-atom-based electro-optic conversion (RAEOC) system behaves as a linear system under strong local oscillator biasing and small-signal excitation. Specifically, we develop a dynamic response model for the RAEOC system and derive its frequency-response expression via time-dependent perturbation theory, Laplace transformation, and vectorization-based computation. Furthermore, we establish a comprehensive RAR communication simulation framework. Monte Carlo simulations demonstrate that the frequency-domain estimation and equalization algorithm can significantly improve the bit error rate performance of RARs in broadband signal reception. Our equalization method suppresses inherent passband distortion in RAR systems to enhance data throughput under finite bandwidth.
Keywords:
Rydberg atomic receivers
Frequency response
Equalization
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5.6
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517
Citations:
1.1K
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