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Quantum computer bests classical computer in simulation

Two cabinets of ORNL's Frontier supercomputer are open to show the blue and red cords on the inside.
Researchers compared the potential of quantum computing against classical systems such as ORNL’s Frontier supercomputer, which is housed and operated by the Oak Ridge Leadership Computing Facility. Credit: ORNL, U.S. Dept. of Energy

Working in collaboration with researchers from Oak Ridge National Laboratory, D-Wave Quantum Inc., a quantum computing systems, software and services provider, has shown its annealing quantum computing prototype has the potential to operate faster than the leading supercomputing systems. The results from D-Wave’s Advantage2, which features more than 1,200 qubits, surpassed classical systems in simulating magnetic materials.

ORNL’s Gonzalo Alvarez, who works at the Quantum Science Center, headquartered at the lab, collaborated with D-Wave to provide reliable classical algorithms to test the speed and effectiveness of its quantum computer versus its classical counterparts. 

The tests, which involved ORNL’s Frontier supercomputer, showed the potential of quantum computing to accelerate scientific simulations. The results were published in Science. QSC Director Travis Humble said this achievement will open new doors for this cutting-edge science.

“Researchers in the Quantum Science Center are using these new paradigms in computation for simulating the behavior of models of materials, such as frustrated magnets, to understand their potential for making new sensing and computing technologies,” Humble said. — Mark Alewine