arXiv:2503.10492quant-phcond-mat.mes-hall2025-03被引 9

用元学习预测量子系统特性,少数据也能高效精准。

Meta-learning characteristics and dynamics of quantum systems

  • 基于历史数据元学习新量子系统的动态与特性
  • 实验数据下对g因子和拉比频率预测准确率提升
  • 适合量子计算硬件优化与小样本物理建模研究者

尽管机器学习在量子技术中前景广阔,但当前多数方法仅针对特定量子系统进行预测或控制。元学习则能利用相似系统的历史数据,快速适应新系统,尤其适用于数据稀缺的情况。本文对闭合与开放的两能级系统及海森堡模型进行了元学习,基于锗/硅核壳纳米线中损失-迪文岑佐自旋量子比特在不同栅极电压配置下的实验数据,成功预测了量子比特的g因子和拉比频率。所提出的算法引入自适应学习率与全局优化器,提升了鲁棒性与计算效率,在性能上优于现有最先进的物理系统元学习方法、普通Transformer和多层感知机,验证了其有效性。

原文摘要 · Abstract (English)

While machine learning holds great promise for quantum technologies, most current methods focus on predicting or controlling a specific quantum system. Meta-learning approaches, however, can adapt to new systems for which little data is available, by leveraging knowledge obtained from previous data associated with similar systems. In this paper, we meta-learn dynamics and characteristics of closed and open two-level systems, as well as the Heisenberg model. Based on experimental data of a Loss-DiVincenzo spin-qubit hosted in a Ge/Si core/shell nanowire for different gate voltage configurations, we predict qubit characteristics i.e. $g$-factor and Rabi frequency using meta-learning. The algorithm we introduce improves upon previous state-of-the-art meta-learning methods for physics-based systems by introducing novel techniques such as adaptive learning rates and a global optimizer for improved robustness and increased computational efficiency. We benchmark our method against other meta-learning methods, a vanilla transformer, and a multilayer perceptron, and demonstrate improved performance.

元学习量子系统小样本学习

Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。