UChicago Team Demonstrates Universal Quantum Computing on 54 Qubits Using Non-Abelian Anyons
Updated
Updated · ScienceDaily · Sep 25
UChicago Team Demonstrates Universal Quantum Computing on 54 Qubits Using Non-Abelian Anyons
3 articles · Updated · ScienceDaily · Sep 25
Summary
Using 54 qubits on Quantinuum’s H2 processor, a UChicago-led team experimentally showed that non-Abelian anyons can execute a universal gate set—the operations needed to run any quantum algorithm.
The result came from combining braiding with fusion in an S3 anyon system; braiding supplied an entangling gate, while fusion enabled two measurements that unlocked operations braiding alone could not reach.
Researchers also generated a magic state directly through topological operations, pointing to a possible way around the qubit-hungry distillation step that dominates standard fault-tolerant quantum error correction.
The work remains a proof of principle rather than a fault-tolerant machine, because it did not include active error correction; the next step is integrating these operations with stabilized non-Abelian quantum memories.
The advance builds on a 2024 anyon demonstration on Quantinuum hardware, moving the approach from showing exotic particles can be created to showing they could underpin large-scale universal quantum computing.
In July 2026, researchers achieved a major milestone by demonstrating the world’s first universal topological gate set using non-Abelian anyons on 54 qubits, entangling them on Quantinuum’s advanced quantum processor. By applying $S_3$ symmetry and combining braiding with fusion operations, they created robust topological qutrits that store three levels of quantum information. This approach encodes logical data directly in the fusion space of anyons, allowing the team to prepare high-fidelity magic states without the heavy resource costs of classical distillation. This breakthrough dramatically reduces hardware requirements and brings the prospect of breaking 2048-bit RSA encryption by 2032 within reach, accelerating the shift toward post-quantum cryptography.