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    Parallel distributed quantum gates for dual-species quantum emitters

    Zhihao Xie1, Adam Miranowicz2,3, Zhenhua Li1,4, Tao Li1,4,*, and Franco Nori3,5

    • *Contact author: tao.li@njust.edu.cn

    Phys. Rev. A 113, 042628 – Published 30 April, 2026

    DOI: https://doi.org/10.1103/lghw-qn1h

    Abstract

    We propose a parallel protocol for implementing distributed nonlocal quantum gates between spatially separated stationary qubits encoded in dual-species quantum emitters (i.e., color-center and superconducting qubits). By utilizing entangled photon pairs with distinct frequencies as a quantum data bus, our approach connects spatially separated devices without requiring quantum frequency conversion or preshared entanglement, while maintaining an always-ready and resource-efficient property for distributed quantum computing and networks. Furthermore, we demonstrate the feasibility of implementing parallel distributed nonlocal quantum gates on multiple pairs of spatially separated qubits using a single high-dimensional entangled photon pair, which directly benefits from the enhanced quantum capacity provided by optical qudit encoding. Our protocol establishes a scalable and practically implementable framework for distributed quantum networks, potentially enabling the development of future large-scale quantum computing architectures.

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