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Separated Atoms Entangle Without Being Moved

A shared photonic cavity supplies programmable all-to-all connectivity while local lasers select the participating subset.

Published Updated Story ID: mp-2026-10-18-018
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Summary

A shared photonic cavity supplies programmable all-to-all connectivity while local lasers select the participating subset.

Neutral-atom processors often move optical tweezers to bring distant qubits together, adding motion errors and possible loss. The proposed Mølmer-Sørensen-like gate couples separated atoms through a shared cavity and uses local addressing to choose any subset. Simulations with experimentally realistic parameters report fidelities above 0.99 and robustness to cavity photon-number changes. These are theoretical and numerical results, not a demonstrated gate in hardware.

Why it matters

A shared photonic cavity supplies programmable all-to-all connectivity while local lasers select the participating subset.

Limits and context

  • These are theoretical and numerical results, not a demonstrated gate in hardware.

Key claims

  1. A shared photonic cavity supplies programmable all-to-all connectivity while local lasers select the participating subset.

    Qualification: These are theoretical and numerical results, not a demonstrated gate in hardware.

    Evidence: source-2026-10-18-020

Sources

  1. arXiv preprint 2610.22220, original v1arXiv · primary research

Corrections

No corrections have been recorded for this story.