Isolated quantum-state networks in ultracold molecules

, Gary; L. Cornish, Simon; R. Hepworth, Tom; D. Gregory, Philip

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Isolated quantum-state networks in ultracold molecules

Shared by Gary on Nov 7, 2025 • 02:35 AM UTC

Authors:

Simon L. Cornish

Tom R. Hepworth

Philip D. Gregory

Abstract

Precise control over rotational angular momentum is at the heart of recent advances in quantum chemistry, quantum simulation, and quantum computation with ultracold bialkali molecules. Each rotational state comprises a rich manifold of hyperfine states arising from combinations of rotation and nucle...

Subject

ultracold molecules

graph theory

rotational states

Highlights

-Closed loop of 4 states in 87Rb133Cs identified with minimal population leakage under simultaneous microwave coupling.

-Optimal set of 3 states identified for realising an iSWAP quantum computing protocol.

-A simple 3-level heuristic was developed to rapidly rank transitions in dense hyperfine manifolds.

-Graph-theoretic framework enables rapid identification of isolated state networks for ultracold molecules.

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