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Hybrid Qubit-Oscillator Module from Motional States of Two Interacting Atoms

Jaeyong Hwang1,2, Tianrui Xu1,2,3, Sean R. Muleady4,5, Steven K. Pampel1, Gur Lubin1, Dawson P. Hewatt1, Cindy A. Regal1, and Ana Maria Rey1,2

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Phys. Rev. Lett. 137, 113403 – Published 9 September, 2026

DOI: https://doi.org/10.1103/2c4d-h5rc

Abstract

We propose a qubit-oscillator platform based on the motional states of two interacting atoms in an optical tweezer. By stroboscopically modulating an engineered trap with tunable anharmonicity, we implement a complete set of bosonic operations and their qubit-controlled counterparts with high fidelity. This motional control enables accurate detection of magnetic dipolar interactions with ∼10  Hz sensitivity in 1 s, reaching sub-Hz resolution within a few minutes in a 20×20 tweezer array under realistic experimental imperfections. Our approach establishes a versatile platform for motional quantum control of two atoms, with applications to spin-boson physics and precision sensing of interaction potentials and trapping environments.

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Phys. Rev. Lett. 137, 113403– Published 9 September, 2026
  • Received 10 December 2025
  • Revised 28 June 2026
  • Accepted 5 August 2026
Article part of CHORUS
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