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Trapped Ion Quantum Computing Quantum Simulation Quantum Chemistry

Multipartite controlled-NOT gates using molecules and Rydberg atoms

arXiv
Authors: Yi-Han Bai, Yue Wei, Chi Zhang, Weibin Li, Xiao-Qiang Shao

Year

2026

Paper ID

38621

Status

Preprint

Abstract Read

~2 min

Abstract Words

100

Citations

N/A

Abstract

We propose high-fidelity controlled-NOT (CNOT) gates in a hybrid system of polar molecules and Rydberg atoms based on the unconventional Rydberg pumping mechanism. By combining the rich internal structure of polar molecules with the strong dipole-dipole interactions of Rydberg atoms, we realize both two-to-one and one-to-two gate configurations. Numerical simulations show that the gate performance is robust against spontaneous emission from Rydberg states. The approach naturally extends to larger systems, as demonstrated by four-qubit implementations achieving three-to-one and one-to-three CNOT gates with fidelities exceeding 99%. These results highlight hybrid molecule-Rydberg atom architectures as a promising platform for scalable quantum information processing.

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  • This paper contributes to the Quantum Simulation research area in the Quantum Articles archive.
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  • We propose high-fidelity controlled-NOT (CNOT) gates in a hybrid system of polar molecules and Rydberg atoms based on the unconventional Rydberg pumping mechanism.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2603.29349 [2] arXiv https://arxiv.org/abs/2603.29349 [3] Publisher https://arxiv.org/abs/2603.29349

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