中国物理B ›› 2024, Vol. 33 ›› Issue (9): 90307-090307.doi: 10.1088/1674-1056/ad5c3b

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Variational data encoding and correlations in quantum-enhanced machine learning

Ming-Hao Wang(王明浩)1,† and Hua Lü(吕桦)2,‡   

  1. 1 School of Physics, Hubei University, Wuhan 430062, China;
    2 School of Science, Hubei University of Technology, Wuhan 430068, China
  • 收稿日期:2024-03-16 修回日期:2024-06-23 接受日期:2024-06-27 发布日期:2024-08-22
  • 通讯作者: Ming-Hao Wang, Hua Lu E-mail:wangmh@hubu.edu.cn;lvhuahg@163.com
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 12105090 and 12175057).

Variational data encoding and correlations in quantum-enhanced machine learning

Ming-Hao Wang(王明浩)1,† and Hua Lü(吕桦)2,‡   

  1. 1 School of Physics, Hubei University, Wuhan 430062, China;
    2 School of Science, Hubei University of Technology, Wuhan 430068, China
  • Received:2024-03-16 Revised:2024-06-23 Accepted:2024-06-27 Published:2024-08-22
  • Contact: Ming-Hao Wang, Hua Lu E-mail:wangmh@hubu.edu.cn;lvhuahg@163.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 12105090 and 12175057).

摘要: Leveraging the extraordinary phenomena of quantum superposition and quantum correlation, quantum computing offers unprecedented potential for addressing challenges beyond the reach of classical computers. This paper tackles two pivotal challenges in the realm of quantum computing: firstly, the development of an effective encoding protocol for translating classical data into quantum states, a critical step for any quantum computation. Different encoding strategies can significantly influence quantum computer performance. Secondly, we address the need to counteract the inevitable noise that can hinder quantum acceleration. Our primary contribution is the introduction of a novel variational data encoding method, grounded in quantum regression algorithm models. By adapting the learning concept from machine learning, we render data encoding a learnable process. This allowed us to study the role of quantum correlation in data encoding. Through numerical simulations of various regression tasks, we demonstrate the efficacy of our variational data encoding, particularly post-learning from instructional data. Moreover, we delve into the role of quantum correlation in enhancing task performance, especially in noisy environments. Our findings underscore the critical role of quantum correlation in not only bolstering performance but also in mitigating noise interference, thus advancing the frontier of quantum computing.

关键词: quantum machine learning, variational data encoding, quantum correlation

Abstract: Leveraging the extraordinary phenomena of quantum superposition and quantum correlation, quantum computing offers unprecedented potential for addressing challenges beyond the reach of classical computers. This paper tackles two pivotal challenges in the realm of quantum computing: firstly, the development of an effective encoding protocol for translating classical data into quantum states, a critical step for any quantum computation. Different encoding strategies can significantly influence quantum computer performance. Secondly, we address the need to counteract the inevitable noise that can hinder quantum acceleration. Our primary contribution is the introduction of a novel variational data encoding method, grounded in quantum regression algorithm models. By adapting the learning concept from machine learning, we render data encoding a learnable process. This allowed us to study the role of quantum correlation in data encoding. Through numerical simulations of various regression tasks, we demonstrate the efficacy of our variational data encoding, particularly post-learning from instructional data. Moreover, we delve into the role of quantum correlation in enhancing task performance, especially in noisy environments. Our findings underscore the critical role of quantum correlation in not only bolstering performance but also in mitigating noise interference, thus advancing the frontier of quantum computing.

Key words: quantum machine learning, variational data encoding, quantum correlation

中图分类号:  (Quantum information)

  • 03.67.-a
03.67.Ac (Quantum algorithms, protocols, and simulations) 03.65.Ud (Entanglement and quantum nonlocality)