Recognizing good variational quantum circuits with Monte Carlo Tree Search (original) (raw)

Abstract

Many investigators have recently turned to the study of quantum architecture search since it is laborious to manually design a high-performing quantum model and corresponding training strategies. For some tasks, it is more realistic in practice to search for a model architecture. In this paper, we introduce the Monte Carlo Tree Search algorithm which has achieved great success in classical neural architecture search to find good variational quantum circuits for two real-world tasks of ground state energy estimations and multimodal fusion. We adapt the Monte Carlo Tree Search to the quantum scenario by considering more sophisticated classifiers within the tree nodes to partition the search space into several subregions based on the model performance. The experimental results indicate that our proposed method has the ability to recognize good models from the vast search space in both tasks. More importantly, the discovered variational quantum circuits demonstrate their advantages in fusing multimodal features under the comprehensive consideration of parameter number and performance.

Access this article

Log in via an institution

Subscribe and save

Buy Now

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

Data Availability

The CMU-MOSI dataset used in this work can be accessed at https://github.com/zqcai19/Q-MCTS/tree/main/best_vqc/data.

Notes

References

Download references

Funding

This work is supported by the National Natural Science Foundation of China under grants 61971143 and 62174035.

Author information

Authors and Affiliations

  1. School of Microelectronics, Fudan University, Shanghai, China
    Zhiqiang Cai & Lingli Wang
  2. Institute of Big Data, Fudan University, Shanghai, China
    Jialin Chen & Ke Xu

Authors

  1. Zhiqiang Cai
  2. Jialin Chen
  3. Ke Xu
  4. Lingli Wang

Contributions

Z. C., J. C., and K. X. conducted the experiments. Z. C. wrote the main manuscript. All authors reviewed the manuscript.

Corresponding author

Correspondence toJialin Chen.

Ethics declarations

Competing Interests

The authors declare no competing interests.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Cite this article

Cai, Z., Chen, J., Xu, K. et al. Recognizing good variational quantum circuits with Monte Carlo Tree Search.Quantum Mach. Intell. 6, 36 (2024). https://doi.org/10.1007/s42484-024-00173-0

Download citation

Keywords