Invertible Surrogate Models: Joint surrogate modelling and reconstruction of Laser-Wakefield Acceleration by invertible neural networks
This work addresses simulation and reconstruction challenges in laser-wakefield acceleration, an incremental advance in domain-specific physics modeling.
The paper tackled the problem of approximating complex forward simulations in laser plasma accelerators by introducing invertible surrogate models, achieving verification on a large set of numerical simulations.
Invertible neural networks are a recent technique in machine learning promising neural network architectures that can be run in forward and reverse mode. In this paper, we will be introducing invertible surrogate models that approximate complex forward simulation of the physics involved in laser plasma accelerators: iLWFA. The bijective design of the surrogate model also provides all means for reconstruction of experimentally acquired diagnostics. The quality of our invertible laser wakefield acceleration network will be verified on a large set of numerical LWFA simulations.