Quantum computers use the properties of quantum physics to store data and perform computations, to solve certain problems much quicker than a standard computer.

Several organisations have developed quantum computers that can string together multiple qubits, the basic unit of information in quantum computing.

But no one has developed a large quantum computer with error correction, which is Australia’s newly set goal. Current quantum computers struggle with errors, and as they get more powerful, more errors develop. An error-corrected quantum computer is the field’s holy grail.

https://www.smh.com.au/national/australia-sets-ambitious-goal-to-build-first-complete-quantum-computer-20230502-p5d51r.html