Imperfect blockade in Rydberg superatoms

Abstract:Ensembles of atoms interacting via their Rydberg levels, known as "superatoms" for their ability to encode qubits and to emit single photons, attract increasing attention as building blocks for quantum network nodes. Assessing their performance requires an accurate, physically informative and numerically scalable description of interactions in a large and disordered ensemble. We derive such a description from first principles and successfully test it against brute-force numerics and experimental data. This model proves essential to make quantitative predictions about gate fidelities or photon emission efficiencies, and to guide experiments towards large-scale superatom-based systems.

Quantum Physics (quant-ph); Atomic Physics (physics.atom-ph)

arXiv:2601.18506 [quant-ph]

(or arXiv:2601.18506v2 [quant-ph] for this version)

https://doi.org/10.48550/arXiv.2601.18506 Focus to learn more arXiv-issued DOI via DataCite

Phys. Rev. Lett. 137, 053605 (2026)

https://doi.org/10.1103/sbk8-n8y3 Focus to learn more DOI(s) linking to related resources

arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website.

Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them.

Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs.