IBM Achieves First Quantum Computation of Fusion Materials

IBM, Oak Ridge National Laboratory, and Cleveland Clinic have performed the first-ever molecular simulations of fusion fuel materials on a quantum computer, marking a breakthrough for clean energy.

IBM, Oak Ridge National Laboratory, and Cleveland Clinic have achieved the first known quantum computation of fusion reactor materials — simulating nine molecular configurations of FLiBe, a molten salt crucial for producing tritium fuel in fusion power plants.

The team used IBM's 156-qubit Heron quantum processor coupled with ORNL's classical supercomputing infrastructure to model the atomic behavior of the lithium-beryllium-fluorine compound. These calculations are computationally intractable for classical systems alone and represent a foundational step toward solving the tritium supply bottleneck that has long constrained fusion energy development.

"This work builds on our advances in simulating complex biological systems at scale, including proteins spanning 12,635 atoms, and extends those techniques into materials science," said Kenneth Merz, staff scientist at Cleveland Clinic.

The research contributes directly to the Department of Energy's Genesis Mission, which aims to unify high-performance computing, AI, and quantum computing across the 17 national laboratories. IBM Director of Research Jay Gambetta told Nextgov that "we're going to see quantum applications accelerate because of this type of work."

The results, published on arXiv, demonstrate that quantum-centric supercomputing — the fusion of quantum, classical, and AI systems — is now a practical scientific tool for problems that have long challenged chemists, engineers, and materials scientists.

Sources: IBM Newsroom, Nextgov