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Journal of Computer Science & Technology 2024年第2期39卷 421-433页

作者：蒋慧邓玉欣徐鸣 Shanghai Key Laboratory of Trustworthy Computing East China Normal UniversityShanghai 200062China

The goal of qubit mapping is to map a logical circuit to a physical device by introducing additional gates as few as possible in an acceptable amount of *** present an effective approach called Tabu Search Based Adjustment(TSA)algorithm to construct the *** consists of two key steps:one is making use of a combined subgraph isomorphism and completion to initialize some candidate mappings,and the other is dynamically modifying the mappings by *** experiments show that,compared with state-of-the-art methods,TSA can generate mappings with a smaller number of additional gates and have better scalability for large-scale circuits.

关键词： quantum computing qubit mapping initial mapping tabu search logical circuit

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A Novel Scheduling Framework for Multi-Programming Quantum Computing in Cloud Environment

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Computers, Materials & Continua 2024年第5期79卷 1957-1974页

作者： Danyang Zheng Jinchen Xv Feng Yue Qiming Du ZhihengWang Zheng Shan Information Engineering University Zhengzhou450001China

As cloud quantum computing gains broader acceptance,a growing quantity of researchers are directing their focus towards this ***,the rapid surge in demand for cloud-based quantum computing resources has led to a scarcity,which in turn hampers users from achieving optimal ***,cloud quantum computing service providers require a unified analysis and scheduling framework for their quantumresources and user jobs to meet the ever-growing usage *** paper introduces a new multi-programming scheduling framework for quantum computing in a cloud *** framework addresses the issue of limited quantum computing resources in cloud environments and ensures a satisfactory user *** introduces three innovative designs:1)Our framework automatically allocates tasks to different quantum backends while ensuring fairness among users by considering both the cloud-based quantum resources and the user-submitted tasks.2)Multi-programming mechanism is employed across different quantum backends to enhance the overall throughput of the quantum *** comparison to conventional task schedulers,our proposed framework achieves a throughput improvement of more than two-fold in the quantum cloud.3)The framework can balance fidelity and user waiting time by adaptively adjusting scheduling parameters.

关键词： Quantum computing scheduling multi-programming qubit mapping

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