• Accepted Paper

Multipartite mixed-species entanglement over a quantum network

D. Main, P. Drmota, E. M. Ainley, A. Agrawal, D. Webb, S. Saner, O. Bǎzǎvan, B. C. Nichol, R. Srinivas, D. P. Nadlinger, G. Araneda, and D. M. Lucas

Phys. Rev. Lett. - Accepted 15 May, 2026

DOI: https://doi.org/10.1103/qpsf-nlp9

Abstract

We generate multipartite entangled states of two, three and four matter qubits, where the entanglement is distributed over macroscopic distances via a photonic network link. Trapped-ion qubits are entangled directly via the optical fibre link, and the entanglement is subsequently extended to memory qubits co-trapped in each network node, using local mixed-species logic gates. We create remotely entangled - and - states, as well as mixed-species states of up to four qubits. We demonstrate storage of the remotely-entangled memory qubits for $\sim\SI{10}{\second}$, more than 100× the state creation time.

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