Overview
- On Thursday, July 30, 2026, IBM and three partner teams publicly released linked demonstrations that claim ‘trusted quantum advantage’ and posted circuits and data to the Quantum Advantage Tracker for external checks.
- IBM and the University of Chicago ran an encoded experiment using 70 logical qubits that executed 2,415 logical two‑qubit gates and 468 logical T gates, finished in about 15 minutes, and reported logical error rates roughly ten times lower than the underlying physical error rates.
- IBM and Qedma used Qedma’s QESEM error‑mitigation software on IBM hardware to probe dynamics in systems up to about 74 qubits where multiple leading classical simulators diverged, and they validated results against RIKEN, BlueQubit and Quantinuum hardware and simulations.
- Algorithmiq and IBM presented a simulation of heterogeneous quantum matter with a trust framework that manipulated and modeled device noise for stand‑alone checks, and Algorithmiq released monoprop, a classical benchmarking package, to let others stress‑test the claim.
- These results mark a technical advance toward fault‑tolerant, verifiable quantum computation and open new scientific use cases, but experts say they do not change the near‑term cryptographic risk because breaking widely used public‑key systems still needs many orders of magnitude more logical qubits.