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Engineers make Critical Advance in Quantum Computer Design

Dr Jarryd Pla and Prof. Andrew Dzurak look from behind a transparent screen showing mathematical workings
Dr Jarryd Pla and Professor Andrew Dzurak have solved the problem of how to reliably control not just a few, but millions of qubits. Photo: UNSW

Quantum engineers from UNSW Sydney have removed a major obstacle that has stood in the way of quantum computers becoming a reality. They discovered a new technique they say will be capable of controlling millions of spin qubits—the basic units of information in a silicon quantum processor.

Until now, quantum computer engineers and scientists have worked with a proof-of-concept model of quantum processors by demonstrating the control of only a handful of qubits.

But with their latest research, published today in Science Advances, the team have found what they consider “the missing jigsaw piece” in the quantum computer architecture that ...

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