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D-Wave claims it has the world's most powerful quantum computer

By Leah Crane

29 September 2020 Last updated 14 October 2020

Quantum chip

D-Wave’s 5000-qubit Advantage quantum chip

D-Wave Systems

D-Wave, a quantum computing company based in Burnaby, Canada, has announced is “by far the largest and most powerful quantum computer in existence today”. The firm already has several clients using its new device, called Advantage, but others in the field have qualms about its claims, pointing out that both classical and quantum computers exist that exceed its capabilities.

Quantum computers use quantum bits, or qubits, to store information. While regular bits can only be in one of two states – a 0 or a 1 – qubits can…

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