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arXiv · 2310.15352

Rydberg-atom-based single-photon detection for haloscope axion searches

Eleanor Graham·Sumita Ghosh·Yuqi Zhu·Xiran Bai·Sidney B. Cahn·Elsa Durcan·Michael J. Jewell·Danielle H. Speller·Sabrina M. Zacarias·Laura T. Zhou·Reina H. Maruyama
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Abstract

We propose a Rydberg-atom-based single-photon detector for signal readout in dark matter haloscope experiments between 40 ${\mu}$eV and 200 ${\mu}$eV (10 GHz and 50 GHz). At these frequencies, standard haloscope readout using linear amplifiers is limited by quantum measurement noise, which can be avoided by using a single-photon detector. Our single-photon detection scheme can offer scan rate enhancements up to a factor of $10^4$ over traditional linear amplifier readout, and is compatible with many different haloscope cavities. We identify multiple haloscope designs that could use our Rydberg-atom-based single-photon detector to search for QCD axions with masses above 40 ${\mu}$eV (10 GHz), currently a minimally explored parameter space.

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Eleanor Graham, Sumita Ghosh, Yuqi Zhu, Xiran Bai, Sidney B. Cahn, Elsa Durcan, Michael J. Jewell, Danielle H. Speller, Sabrina M. Zacarias, Laura T. Zhou, Reina H. Maruyama. 2023-10-23. Rydberg-atom-based single-photon detection for haloscope axion searches. https://doi.org/10.1103/physrevd.109.032009

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