Realization of a cavity-coupled Rydberg array
Abstract
Scalable quantum computers and quantum networks require the combination of quantum processing nodes with efficient light-matter interfaces to distribute quantum information in local or long-distance quantum networks. Neutral-atom arrays have both been coupled to Rydberg states to enable high-fidelity quantum gates in universal processing architectures, and to optical cavities to realize interfaces to photons. However, combining these two capabilities and coupling atom arrays to highly excited Rydberg states in the mode of an optical cavity has been an outstanding challenge. Here we present a novel cavity-coupled Rydberg array that achieves this long-standing goal. We prepare, detect, and control individual atoms in a scalable optical tweezer array, couple them strongly to the optical mode of a high-finesse optical cavity and excite them in a controlled way to Rydberg states. We show that high-cooperativity coupling to an optical cavity -- demonstrated via the dispersive shift of the resonance of the cavity in presence of the atoms -- and strong Rydberg interactions -- demonstrated via the collective enhancement of Rydberg coupling in the atomic array -- can be achieved in our setup at the same spatial location. Our presented experimental platform opens the path to several new directions, including the realization of quantum network nodes, quantum simulation of long-range interacting, open quantum systems and photonic-state engineering leveraging high-fidelity Rydberg control.
Related
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BibTeX
@article{santis2026realization,
title = {{Realization of a cavity-coupled Rydberg array}},
author = {Jacopo De Santis and Balázs Dura-Kovács and Mehmet Öncü and Adrien Bouscal and Dimitrios Vasileiadis and Johannes Zeiher},
journal = {Physical Review X},
year = {2026},
month = oct,
doi = {10.1103/jgdt-d61y},
url = {https://link.aps.org/doi/10.1103/jgdt-d61y},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Realization of a cavity-coupled Rydberg array
AU - Jacopo De Santis
AU - Balázs Dura-Kovács
AU - Mehmet Öncü
AU - Adrien Bouscal
AU - Dimitrios Vasileiadis
AU - Johannes Zeiher
PY - 2026
DA - 2026/10/02
JO - Physical Review X
DO - 10.1103/jgdt-d61y
UR - https://link.aps.org/doi/10.1103/jgdt-d61y
AB - Scalable quantum computers and quantum networks require the combination of quantum processing nodes with efficient light-matter interfaces to distribute quantum information in local or long-distance quantum networks. Neutral-atom arrays have both been coupled to Rydberg states to enable high-fidelity quantum gates in universal processing architectures, and to optical cavities to realize interfaces to photons. However, combining these two capabilities and coupling atom arrays to highly excited Rydberg states in the mode of an optical cavity has been an outstanding challenge. Here we present a novel cavity-coupled Rydberg array that achieves this long-standing goal. We prepare, detect, and control individual atoms in a scalable optical tweezer array, couple them strongly to the optical mode of a high-finesse optical cavity and excite them in a controlled way to Rydberg states. We show that high-cooperativity coupling to an optical cavity -- demonstrated via the dispersive shift of the resonance of the cavity in presence of the atoms -- and strong Rydberg interactions -- demonstrated via the collective enhancement of Rydberg coupling in the atomic array -- can be achieved in our setup at the same spatial location. Our presented experimental platform opens the path to several new directions, including the realization of quantum network nodes, quantum simulation of long-range interacting, open quantum systems and photonic-state engineering leveraging high-fidelity Rydberg control.
SN - 2160-3308
ER -