Trapped ions constitute a promising platform for implementation of a quantum network. Recently, a dual-type qubit scheme has been realized in a quantum network node where the communication qubits and the memory qubits are encoded in different energy levels of the same ion species, such that the generation of ion-photon entanglement on the communication qubits has negligible crosstalk error on the preloaded quantum information in the memory qubits. However, to achieve the versatile applications of a quantum network, a crucial component of the dual-type node, namely the entangling gate between the communication and the memory qubits, is still missing. Here we report a dual-type quantum network node equipped with ion-photon entanglement generation, crosstalk-free quantum memory and entangling gates between the dual-type qubits simultaneously. We demonstrate its practical applications including the quantum state teleportation and the preparation of multipartite entangled state. Our work achieves the necessary components of a dual-type quantum network node and paves the way toward its applications in a large-scale quantum internet.
@article{arxiv.2506.23562,
title = {Realization of a functioning dual-type trapped-ion quantum network node},
author = {Y. -Y. Huang and L. Feng and Y. -K. Wu and Y. -L. Xu and L. Zhang and Z. -B. Cui and C. -X. Huang and C. Zhang and S. -A. Guo and Q. -X. Mei and B. -X. Qi and Y. Xu and Y. -F. Pu and Z. -C. Zhou and L. -M. Duan},
journal= {arXiv preprint arXiv:2506.23562},
year = {2025}
}