Signal IBM and University of Chicago Demonstrate Quantum Advantage, Establishing Trusted Quantum Computation on Logical Circuits

Summary

IBM announced three simultaneous quantum advantage demonstrations conducted with the University of Chicago, Qedma Quantum Computing, and Algorithmiq. With the University of Chicago, researchers encoded 70 logical qubits using a new error-correction approach and solved a computational problem considered intractable for classical computers, described in a paper titled 'Sampling hard circuits with verifiably high fidelity.' With Qedma, researchers used the IBM Quantum Heron processor combined with Qedma's QESEM error-mitigation software to simulate a two-dimensional Floquet Ising system with up to 74 qubits, a scale at which classical techniques tested via RIKEN and BlueQubit, including the Fugaku supercomputer, could not consistently reproduce results. With Algorithmiq, the companies jointly demonstrated quantum advantage in simulating a heterogeneous quantum material using a new framework that establishes trust in quantum computations even when classical verification is unavailable. IBM Research Director Jay Gambetta stated that the company is 'now firmly in the quantum advantage era.' IBM's roadmap targets a fault-tolerant system called Starling by 2029 and a larger system called Blue Jay by 2033, backed by a commitment of more than $10 billion in quantum computing investment.