Data capacity scaling of a distributed Rydberg atomic receiver array

Abstract

The data transfer capacity of a communication channel is limited by the Shannon-Hartley theorem and scales as ${\text{log}}_2(1+\text{SNR})$ for a single channel with the power signal-to-noise ratio (SNR). We implement an array of atom-optical receivers in a single-input-multi-output (SIMO) configuration by using spatially distributed probe light beams. The data capacity of the distributed receiver configuration is observed to scale as ${\text{log}}_2(1+N\times \text{SNR})$ for an array consisting of $N$ receivers. Our result is independent on the modulation frequency, and we show that such enhancement of the bandwidth cannot be obtained by a single receiver with a similar level of combined optical power. We investigate both theoretically and experimentally the origins of the single channel capacity limit for our implementation.

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• Observation of Asymmetric Sideband Generation in Strongly-driven Rydberg Atoms
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• Probing Bandwidth and Sensitivity in Rydberg Atom Sensing via Optical Homodyne and RF Heterodyne Detection
• Enhancement of electromagnetically induced transparency based Rydberg-atom electrometry through population repumping
• EIT Spectroscopy of Rydberg Levels Dressed by Linearly Polarized RF fields: Complementary Angular Response for Two Types of Transition Ladders
• Rydberg atom-based field sensing enhancement using a split-ring resonator