Hamiltonian Learning via Inverse Physics-Informed Neural Networks

• URL: http://arxiv.org/abs/2506.10379v1
• Date: Thu, 12 Jun 2025 06:09:41 GMT
• Title: Hamiltonian Learning via Inverse Physics-Informed Neural Networks
• Abstract summary: Hamiltonian learning (HL) enables precise estimation of system parameters and underlying dynamics.<n>We present textitInverse Physics-Informed Neural Networks for Hamiltonian Learning (iPINN-HL), an approach that embeds the Schr"odinger equation directly into the machine learning procedure.<n>We benchmark iPINN-HL against a deep-neural-network-based quantum state tomography method (denoted as DNN-HL) and demonstrate its effectiveness.
• Score: 8.704794234217838
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Hamiltonian learning (HL), enabling precise estimation of system parameters and underlying dynamics, plays a critical role in characterizing quantum systems. However, conventional HL methods face challenges in noise robustness and resource efficiency, especially under limited measurements. In this work, we present \textit{Inverse Physics-Informed Neural Networks for Hamiltonian Learning (iPINN-HL)}, an approach that embeds the Schr\"{o}dinger equation directly into the machine learning procedure. This formulation allows the model to integrate both observational data and known physical laws to infer Hamiltonian parameters with greater accuracy and resource efficiency. We benchmark iPINN-HL against a deep-neural-network-based quantum state tomography method (denoted as DNN-HL) and demonstrate its effectiveness across several different scenarios, including one-dimensional spin chains, cross-resonance gate calibration, crosstalk identification, and real-time compensation to parameter drift. Our results show that iPINN-HL can approach the Heisenberg limit in certain settings and exhibits robustness to noises, while outperforming DNN-HL in accuracy and resource efficiency. Therefore, iPINN-HL is a powerful and flexible framework for quantum system characterization for practical tasks.

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