Building Transformer-Based NQS for Frustrated Spin Systems with NetKet
The intersection of many-body physics and deep learning has opened a new frontier: Neural Quantum States (NQS). While traditional methods struggle with high-dimensional frustrated systems, the global attention mechanism of Transformers provides a powerful tool for capturing complex quantum correlations. In this tutorial, we implement a research-grade Variational Monte Carlo (VMC) pipeline using NetKet and JAX to solve the frustrated J1–J2 Heisenberg spin chain. We will: Build a custom Transformer-based NQS architecture. Optimize the wavefunction using Stochastic Reconfiguration […]