Related papers: Enhanced Rydberg-Atom Superheterodyne Detection of Hidden-Photon Dark Matter on Chips

Enhanced Rydberg-Atom Superheterodyne Detection of Hidden-Photon Dark Matter on Chips

URL: http://arxiv.org/abs/2607.15612v1
Date: Fri, 17 Jul 2026 04:22:31 GMT
Title: Enhanced Rydberg-Atom Superheterodyne Detection of Hidden-Photon Dark Matter on Chips
Abstract summary: Hidden photons induce a weak oscillating electric field above $10,mathrmGHz$.<n>We propose to amplify this signal using a compact high-frequency distributed cavity and detect it with chip-scale Rydberg-atom superheterodyne spectroscopy.<n>This approach can probe hidden-photon dark matter in the mass range $5 times 10-5text--7times 10-4,mathrmeV$ with sensitivities $3$--$4$ orders of magnitude beyond existing limits.
Score: 13.083999565074862
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: Although hidden-photon dark matter with masses above $10^{-4}\,\mathrm{eV}$ is well motivated by inflationary production, it remains largely unexplored by terrestrial experiments. Through kinetic mixing, hidden photons induce a weak oscillating electric field above $10\,\mathrm{GHz}$. We propose to amplify this signal using a compact high-frequency distributed cavity and detect it with chip-scale Rydberg-atom superheterodyne spectroscopy. Combining resonant enhancement, large dipole moments of Rydberg atoms, and long-term stable integration, this approach can probe hidden-photon dark matter in the mass range $5 \times 10^{-5}\text{--}7\times 10^{-4}\,\mathrm{eV}$ with sensitivities $3$--$4$ orders of magnitude beyond existing limits.

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