3 papers
quant-ph2026
Improving Single Excitation Fidelity in Rydberg Superatoms for Efficient Single Photon Emission
Vidisha Aggarwal, Boxi Li, Eloisa Cuestas +4
Deterministic single photon emission from a Rydberg ensemble coupled to an optical cavity requires high-fidelity preparation of collective single excitations. In such a setup imper…
quant-ph2026
Imperfect blockade in Rydberg superatoms
Valentin Magro, Sébastien Garcia, Alexei Ourjoumtsev
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 buildi…
quant-ph2025
Protecting collective qubits from non-Markovian dephasing
Antoine Covolo, Valentin Magro, Mathieu Girard +2
Collectively-encoded qubits, involving ensembles of atomic or solid-state emitters, present many practical advantages for quantum technologies. However, they suffer from uncontroll…