Data capacity scaling of a distributed Rydberg atomic receiver array

• URL: http://arxiv.org/abs/2102.05285v2
• Date: Wed, 7 Apr 2021 11:17:00 GMT
• Title: Data capacity scaling of a distributed Rydberg atomic receiver array
• Authors: J. Susanne Otto, Marisol K. Hunter, Niels Kj{\ae}rgaard and Amita B. Deb
• Abstract summary: 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 $textlog (1 + NtimestextSNR)$ for an array consisting of $N$.
• Score: 0.0
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• 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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