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arXiv · 2506.15277

Entangling remote superconducting qubits via transducer-generated multi-time-bin states

Jing Wu·Changqing Wang·Andrew Cameron·Silvia Zorzetti
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Abstract

Recent studies have shown long-distance entanglement using NV centers, atoms, and quantum dots with single-photon time-bin encoding. We propose a method to entangle remote superconducting qubits via microwave-optical transduction using multi-time-bin states. By adapting conventional entanglement swapping techniques, fidelity improves from 0.75 to $0.98$ in transduction systems, and 0.66 to 0.89 in noisy channels. The protocol mitigates thermal noise without relying on purification and offers a practical path toward scalable, heterogeneous quantum systems.

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Jing Wu, Changqing Wang, Andrew Cameron, Silvia Zorzetti. 2025-06-18. Entangling remote superconducting qubits via transducer-generated multi-time-bin states. https://arxiv.org/abs/2506.15277

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