• Chinese Journal of Quantum Electronics
  • Vol. 41, Issue 1, 1 (2024)
WANG Shengbin1,2, DOU Menghan1, WU Yuchun2,*, GUO Guoping1,2,**, and GUO Guangcan2
Author Affiliations
  • 1Origin Quantum Computing Company Limited, Hefei 230088, China
  • 2CAS Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China
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    DOI: 10.3969/j.issn.1007-5461.2024.01.001 Cite this Article
    Shengbin WANG, Menghan DOU, Yuchun WU, Guoping GUO, Guangcan GUO. Research progress of distributed quantum computing[J]. Chinese Journal of Quantum Electronics, 2024, 41(1): 1 Copy Citation Text show less
    Illustration for the communication types among quantum processing units
    Fig. 1. Illustration for the communication types among quantum processing units
    Circuit for preparing Bell states (left) and their non-local representation (right)
    Fig. 2. Circuit for preparing Bell states (left) and their non-local representation (right)
    Circuit for preparing GHZ3 state (left) and its non-local representation (right)
    Fig. 3. Circuit for preparing GHZ3 state (left) and its non-local representation (right)
    Sketch circuit for quantum teleportation
    Fig. 4. Sketch circuit for quantum teleportation
    Sketch circuit for teleporting CNOT gate[65]
    Fig. 5. Sketch circuit for teleporting CNOT gate[65]
    Circuit for entanglement swapping[67]
    Fig. 6. Circuit for entanglement swapping[67]
    Sketch circuits of cat-entangler (left) and cat-disentangler (right)[71]
    Fig. 7. Sketch circuits of cat-entangler (left) and cat-disentangler (right)[71]
    High-level system abstraction of the distributed quantum computing ecosystem[50]
    Fig. 8. High-level system abstraction of the distributed quantum computing ecosystem[50]
    Distributed three-qubit variational circuit[120]
    Fig. 9. Distributed three-qubit variational circuit[120]
    Distributed Shor's algorithm[121]
    Fig. 10. Distributed Shor's algorithm[121]
    Workflow of the modular quantum compilation framework for DQC architectures[139]
    Fig. 11. Workflow of the modular quantum compilation framework for DQC architectures[139]
    Illustrative circuit for wire cutting
    Fig. 12. Illustrative circuit for wire cutting
    The "measure-and-prepare" channel[140]
    Fig. 13. The "measure-and-prepare" channel[140]
    Illustrative circuit for gate cutting
    Fig. 14. Illustrative circuit for gate cutting
    Decomposition of two-qubit unitary eiθA1⊗A2 into a sequence of single-qubit gates[141]
    Fig. 15. Decomposition of two-qubit unitary eiθA1A2 into a sequence of single-qubit gates[141]
    Decomposition of CZ gate into a sequence of single-qubit gates[141]
    Fig. 16. Decomposition of CZ gate into a sequence of single-qubit gates[141]
    Illustration of random Clifford circuit based circuit cutting method[148]
    Fig. 17. Illustration of random Clifford circuit based circuit cutting method[148]
    Sketch of wire cutting for a TTN-shaped quantum circuit[160]
    Fig. 18. Sketch of wire cutting for a TTN-shaped quantum circuit[160]
    Circuit cutting framework for quantum error mitigation[161]
    Fig. 19. Circuit cutting framework for quantum error mitigation[161]
    序号类别第一类分布式量子计算第二类分布式量子计算
    1通信方式量子通信经典通信
    2实现技术量子隐形传态技术线路拆分技术
    3方法分类比特传输、门传输比特拆分、门拆分
    4系统纠缠度芯片内纠缠、芯片间纠缠芯片内纠缠、芯片间不纠缠
    5面向平台容错量子计算机NISQ计算机、容错量子计算机
    Table 1. Comparison between the two types of DQC methods
    序号方法类型复杂度经典通信辅助比特同时切割
    1[140]比特拆分16k无需
    2[141]门拆分9k无需
    3[147]门拆分(2k+1-1)2需要
    4[148]比特拆分(2k+1+1)2需要
    5[150]比特拆分(2k+1-1)2无需
    6[152]比特拆分(2k+1-1)2需要
    Table 2. Statistics on the complexity of the circuit cutting technique
    Shengbin WANG, Menghan DOU, Yuchun WU, Guoping GUO, Guangcan GUO. Research progress of distributed quantum computing[J]. Chinese Journal of Quantum Electronics, 2024, 41(1): 1
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