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arXiv · 2512.06429

Hybrid qubit-oscillator module from motional states of two interacting atoms

Jaeyong Hwang·Tianrui Xu·Sean R. Muleady·Steven K. Pampel·Gur Lubin·Dawson P. Hewatt·Cindy A. Regal·Ana Maria Rey
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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 $\sim10$ Hz sensitivity in one second, reaching sub-Hz resolution within a few minutes in a $20\times20$ 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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Jaeyong Hwang, Tianrui Xu, Sean R. Muleady, Steven K. Pampel, Gur Lubin, Dawson P. Hewatt, Cindy A. Regal, Ana Maria Rey. 2025-12-06. Hybrid qubit-oscillator module from motional states of two interacting atoms. https://doi.org/10.1103/2c4d-h5rc

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