BBC News - Quantum computing device hints at powerful future
One of the most complex efforts toward a quantum computer has been shown off at the American Physical Society meeting in Dallas in the US.
It uses the strange "quantum states" of matter to perform calculations in a way that, if scaled up, could vastly outperform conventional computers.
The 6cm-by-6cm chip holds nine quantum devices, among them four "quantum bits" that do the calculations.
The team said further scaling up to 10 qubits should be possible this year.
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