D-Wave’s Quantum Supremacy Result Stands Recent classical simulation work represents progress, but does not overturn D-Wave’s peer-reviewed demonstration of beyond-classical quantum simulation The claim that D-Wave’s achievement has been overturned is inaccurate and not supported by the scientific record. D-Wave welcomes advances in classical algorithms, including recent tensor-network work from researchers at the In the peer-reviewed Science paper, “Beyond-classical computation in quantum simulation,” D-Wave researchers and collaborators demonstrated beyond-classical computation in the quantum simulation of nonequilibrium magnetic spin dynamics using D-Wave annealing quantum computers. The work studied square, cubic, diamond and biclique topologies and showed that “D-Wave’s demonstration of beyond-classical computation continues to hold up under careful scientific scrutiny,” said Dr. The Flatiron Institute’s BP-TNS algorithm is a meaningful contribution to the classical state of the art, and it is effective in some regimes. But it is not effective across the full range of problem classes studied in D-Wave’s Science paper. In a In the arXiv paper “Evaluating Classical Simulations with a Quantum Processor," D-Wave researchers and collaborators further evaluated the limits of classical tensor-network simulations using a quantum processor as a reference. That work showed that BP-TNS fails for strongly coupled three-dimensional spin glasses on cubic and diamond lattices, and that loop-corrected BP-TNS is ineffective for higher-dimensional biclique problems. These are important quantum simulation regimes included in D-Wave’s original demonstration, not peripheral examples. “The BP-TNS algorithm is effective in some regimes and ineffective in others,” said Dr. D-Wave encourages continued work by the “We should all hold ourselves to a higher standard when communicating scientific results,” Baratz added. About D-Wave is a leader in the development and delivery of quantum computing systems, software, and services. It is the world’s first commercial supplier of quantum computers, and the first and only to offer dual-platform quantum computing products and services, spanning