Google DeepMind's Gemini 4 Argon finds new counterexamples to Grad's plasma physics conjecture

Google DeepMind says researchers using Gemini 4 Argon found two new families of 3D magnetic field designs that counter Grad's conjecture, a roughly 60-year-old assumption in plasma physics.

The work is described in a new paper with Jonathan Citrin, Brendan Tracey and Matt Landreman at the University of Maryland, posted on arXiv (2610.07304). The company's post is the only source reporting the result so far, and the paper's findings have not been independently verified in the reports available.