首页|Delayed-measurement one-way quantum computing on cloud quantum computer

Delayed-measurement one-way quantum computing on cloud quantum computer

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One-way quantum computation focuses on initially generating an entangled cluster state followed by a sequence of measurements with classical communication of their individual outcomes.Recently,a delayed-measurement approach has been applied to replace classical communication of individual measurement outcomes.In this work,by considering the delayed-measurement approach,we demonstrate a modified one-way CNOT gate using the on-cloud superconducting quantum computing platform:Quafu.The modified protocol for one-way quantum computing requires only three qubits rather than the four used in the standard protocol.Since this modified cluster state decreases the number of physical qubits required to implement one-way computation,both the scalability and complexity of the computing process are improved.Compared to previous work,this modified one-way CNOT gate is superior to the standard one in both fidelity and resource requirements.We have also numerically compared the behavior of standard and modified methods in large-scale one-way quantum computing.Our results suggest that in a noisy intermediate-scale quantum(NISQ)era,the modified method shows a significant advantage for one-way quantum computation.

measurement-based quantum computingquantum entanglementquantum gates

杨智鹏、张煜然、李福利、范桁

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Beijing Academy of Quantum Information Science,Beijing 100193,China

Ministry of Education Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter,Shaanxi Province Key Laboratory of Quantum Information and Quantum Optoelectronic Devices,School of Physics,Xi'an Jiaotong University,Xi'an,Shaanxi 710049,China

School of Physics and Optoelectronics,South China University of Technology,Guangzhou 510640,China

Institute of Physics,China Academy of Sciences,Beijing 100190,China

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National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaBeijing Natural Science Foundation

92265207T2121001Z200009

2024

10.1088/1674-1056/ad6253

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子：0.995
ISSN：1674-1056
年,卷(期)：2024.33(9)