We used a quantum computer to create a "chimera" where half the system is perfectly in sync and the other half is pure chaos.
arXiv · March 13, 2026 · 2603.11910
Why it matters
In nature, systems usually tend toward either total order or total disorder, but 'chimera states' are bizarre hybrids where both coexist side-by-side for no obvious reason. Seeing this on a massive scale in a quantum processor proves that these mythical-sounding patterns are a robust feature of the quantum world.
From the abstract
Synchronization is a hallmark of collective behavior in classical nonlinear systems, yet its realization as a robust many-body phenomenon in coherent quantum systems remains largely unexplored. Here we demonstrate symmetry-protected quantum synchronization and a quantum chimera state in coherent Floquet dynamics on programmable superconducting quantum processors. By implementing stroboscopic evolution of a two-dimensional Heisenberg model on IBM heavy-hex devices, we observe that initially phase