IGNITE Tokamak World Model Architecture
We introduce IGNITE, a generative world foundation model for fusion plasma behavior simulation trained in a self-supervised manner from over a decade of unlabeled experimental data at the DIII-D National Fusion Facility. The core of IGNITE is a dynamics model that can simulate DIII-D discharges from a given set of actuator trajectories. These trajectories can be supplied or generated on-the-fly from a textual prompt or from desired experimental outcomes. The model architecture consists of several spatio-temporal tokenizers that embed the different input modalities, including time-series like spatio-temporal measurement data, image sequences, and high-resolution spectrograms, each of which...
| Authors | Peter Steiner, Azarakhsh Jalalvand, Nathaniel Chen et al. |
|---|---|
| Primary category | physics.plasm-ph |
| Published | 1 October 2026 |
| Last updated at source | 1 October 2026 |
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