TY - JOUR T1 - A Symplectic Based Neural Network Algorithm for Quantum Controls under Uncertainty AU - Li , Jingshi AU - Chen , Song AU - Wang , Lijin AU - Cao , Yanzhao JO - Communications in Computational Physics VL - 5 SP - 1525 EP - 1545 PY - 2022 DA - 2022/05 SN - 31 DO - http://doi.org/10.4208/cicp.OA-2021-0219 UR - https://global-sci.org/intro/article_detail/cicp/20513.html KW - Quantum (noise) control, neural network, symplectic methods, norm-preservation. AB -

Robust quantum control with uncertainty plays a crucial role in practical quantum technologies. This paper presents a method for solving a quantum control problem by combining neural network and symplectic finite difference methods. The neural network approach provides a framework that is easy to establish and train. At the same time, the symplectic methods possess the norm-preserving property for the quantum system to produce a realistic solution in physics. We construct a general high dimensional quantum optimal control problem to evaluate the proposed method and an approach that combines a neural network with forward Euler’s method. Our analysis and numerical experiments confirm that the neural network-based symplectic method achieves significantly better accuracy and robustness against noises.