Cleveland Clinic, RIKEN, and IBM Simulate Largest Protein Using Quantum Computing

Cleveland Clinic, RIKEN, and IBM successfully simulated a protein complex of 12,635 atoms using quantum computing, published May 5, 2026. The breakthrough achieved protein simulations approximately 40 times larger than previously possible using a quantum-centric supercomputing algorithm that combines IBM's 156-qubit Quantum Heron processors with classical supercomputers for initial computations.

Protein simulation breakthrough

• ▪The Cleveland Clinic, RIKEN, and IBM research team simulated protein sizes approximately 40 times larger than previously possible.
• ▪Scientists from Cleveland Clinic, RIKEN, and IBM successfully simulated a protein complex made up of 12,635 atoms using quantum computing.
• ▪The Cleveland Clinic, RIKEN, and IBM protein simulation research was published on May 5, 2026.
• ▪Kenneth Merz, Ph.D., is the lead author of the Cleveland Clinic, RIKEN, and IBM protein simulation study.

Quantum-centric supercomputing approach

• ▪The Cleveland Clinic, RIKEN, and IBM researchers employed an innovative algorithm termed quantum-centric supercomputing that enhances cooperation between quantum and classical systems.
• ▪Jay Gambetta is Director of IBM Research.
• ▪The Cleveland Clinic, RIKEN, and IBM study used IBM's quantum computers alongside two powerful supercomputers.

Drug discovery applications

• ▪Bringing a single medicine to market traditionally takes over a decade.
• ▪The Cleveland Clinic, RIKEN, and IBM protein simulation study highlights potential for higher accuracy in energy calculations and expanded simulated size of molecular systems.
• ▪Integrating quantum computing technology could allow small businesses to simulate enzyme catalysts and drug mechanisms.

Small business implications

• ▪Leland McFarland is the owner of Small Business Trends and BizSugar.
• ▪Small businesses in the pharmaceutical and biotech sectors could soon harness quantum computing for more efficient and accurate research processes.
• ▪The Cleveland Clinic, RIKEN, and IBM quantum computing breakthrough provides small business owners in the life sciences an opportunity to leverage cutting-edge technology to speed up research and reduce costs.

Technical infrastructure costs

• ▪Small business owners must consider costs associated with adopting quantum computing technology, including necessary investment in infrastructure and training.
• ▪Small business owners must weigh potential benefits of quantum computing against the inherent uncertainties of this cutting-edge technology.

Hybrid quantum-classical systems

• ▪The Cleveland Clinic, RIKEN, and IBM researchers broke down protein-ligand complexes into manageable pieces for processing by classical and quantum computers.
• ▪Classical computers handled initial computations while IBM's 156-qubit Quantum Heron processors executed quantum-mechanical calculations in the Cleveland Clinic, RIKEN, and IBM protein simulation study.

Perspective of Small business owners in pharmaceutical and biotech sectors

• ▪Small business owners must weigh potential benefits of quantum computing against the inherent uncertainties of this cutting-edge technology.
• ▪Small business owners must consider costs associated with adopting quantum computing technology, including necessary investment in infrastructure and training.

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