Avalanche terahertz photon detection in a Rydberg tweezer array

Abstract

We propose a protocol for the amplified detection of low-intensity terahertz radiation using Rydberg tweezer arrays. The protocol offers single photon sensitivity together with a low dark count rate. It is split into two phases: during a sensing phase, it harnesses strong terahertz-range transitions between highly excited Rydberg states to capture individual terahertz photons. During an amplification phase it exploits the Rydberg facilitation mechanism which converts a single terahertz photon into a substantial signal of Rydberg excitations. We discuss a concrete realization based on realistic atomic interaction parameters, develop a comprehensive theoretical model that incorporates the motion of trapped atoms and study the many-body dynamics using tensor network methods.

9 pages, 6 figures

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Cited by in corpus (4)

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• Directional quantum scattering transducer in cooperative Rydberg metasurfaces
• Spin amplification in realistic systems
• Superquantization rule for multistability in driven-dissipative quantum systems