Abstract
The combination of quantum computing and machine learning is expected to solve problems that cannot be realized by classical computers in machine learning. In current quantum machine learning, variational quantum algorithm is the mainstream quantum models, and classical neural networks are replaced by parameterized quantum gates. In the noisy-intermediate scale quantum computer, it is important to design lightweight and efficient quantum networks. This paper proposes a method for designing parameterized quantum circuits based on specific Pauli axis. By obtaining the prior information of the coding strategy, using the rotational characteristics of the quantum gate to reasonably combine the quantum gate and efficiently realize the classification task on a specific Pauli axis, it can reduce the amount of parameters in the variational quantum circuit. In addition, considering the current topology of quantum computers, the design method of circuit entanglement structure is given. Finally, the performance is compared with two general-purpose models on four low-dimensional datasets, and the circuit designed in this paper has fewer parameters and faster convergence speed. In addition, the three models are simulated with noise, and the test set is predicted on the Rigetti Aspen-M-3 quantum computer.
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Resources and computing environment provided by Nanjing University of Posts and Telecommunications, Nanjing, China, thanks to the support of the school.
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This work is supported by National Natural Science Foundation of China under Grants Nos. 62271265 and 62271266.
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All authors contributed to the conception and design of the study. The methodology and experiments are operated by BL. The refinement of the manuscript was carried out by TL and FL. The funding was applied for by TL, and all authors commented on previous manuscripts. All authors read and approved the final manuscript.
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Li, B., Li, T. & Li, F. A design method for efficient variational quantum models based on specific Pauli axis. Quantum Inf Process 22, 387 (2023). https://doi.org/10.1007/s11128-023-04127-6
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DOI: https://doi.org/10.1007/s11128-023-04127-6