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Poster Session

Poster Session II

4:00 pm – 6:00 pm, Wednesday June 18 Session H00 Oregon Convention Center, Exhibit Hall E
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An atom-array cavity-array platform

Poster 144
Presenter: Shankar G Menon (University of Chicago)
Authors: Noah Glachman (University of Chicago), Dahlia Ghoshal (University of Chicago), Nayana Tiwari (University of Chicago), Yuzhou Chai (University of Chicago), Matteo Pompili (University of Chicago), Alan Dibos (Argonne National Laboratory), Hannes Bernien (UChicago)

Neutral atom arrays are a leading platform for quantum computation and simulation, offering identical qubits, programmability, and reconfigurable interactions. Integrating atom-arrays with photonic interfaces, like cavities can enable sub-microsecond qubit readout, efficient atom-photon entanglement, and enable new quantum simulation capabilities through long-range interactions. However, scalable and efficient integration of atom-arrays with such photonic interfaces remains a major challenge.

We present an atom-array cavity-array platform integrating cesium atom arrays with a photonic chip containing over 100 nanophotonic cavities. To enable this, we develop: (1) a background-free imaging scheme using excited-state transitions in cesium with >99% fidelity, (2) a photonic chip design optimized for efficient atom loading, and (3) a free-space coupling scheme achieving >65% waveguide-to-fiber coupling efficiency.

We demonstrate collisional-blockade limited loading of atom array next to photonic chip, parallel transport of atoms to multiple cavities, and achieving atom-cavity separations as small as 300 nm. At these distances, atom-photon interaction strengths exceeding 1 GHz are achievable. We present these capabilities and our efforts towards single photon extraction through atom-cavity coupling. These results address key integration challenges and pave the way for quantum networking and distributed quantum computing.

POSTERS (156)