Realization of a functioning dual-type trapped-ion quantum network node

• URL: http://arxiv.org/abs/2506.23562v1
• Date: Mon, 30 Jun 2025 07:08:17 GMT
• Title: Realization of a functioning dual-type trapped-ion quantum network node
• Authors: Y. -Y. Huang, L. Feng, Y. -K. Wu, Y. -L. Xu, L. Zhang, Z. -B. Cui, C. -X. Huang, C. Zhang, S. -A. Guo, Q. -X. Mei, B. -X. Qi, Y. Xu, Y. -F. Pu, Z. -C. Zhou, L. -M. Duan,
• Abstract summary: 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.<n>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.
• Score: 0.1987856300421432
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: 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.

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