Nature Physics, Published online: 28 November 2025; doi:10.1038/s41567-025-03104-3
Adding momentum mixing in a controllable way to the exactly solvable Hatsugai–Kohmoto model is shown to recover the physics of the Hubbard model, the starting point for understanding Mott physics. The scheme converges as the inverse square of the number of steps, and, as each step is tractable, minimal computational resources are required.
