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Quantum Computer Code Written onto Qubits in Silicon Chip


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For a long time now, researchers have been working towards quantum computers that exploit quantum mechanics to perform operations traditional computers would take millennia to complete. We are still working on the technologies and components that will be necessary to construct these computers though, but are continually making important steps. Now researchers at the University of New South Wales have successfully built two qubits into a silicon microchip and written quantum computer code to them.

While traditional computers utilize bits with values of zero and one, quantum computers use qubits that can be both zero and one at the same time, thanks to superposition. By also entangling these qubits with each other, quantum code that has no analogy in normal computers can be encoded. With qubits made from an electron and nucleus of phosphorus atoms embedded into silicon chips, the New South Wales researchers were able to achieve write this code. Further the design they used passes a measure of locality with the highest 'score' ever recorded in an experiment. Locality means that objects are only influenced by those around them, and not remotely as quantum mechanics can allow. A high score means the system is indeed quantum mechanical in nature.

By achieving this with qubits in silicon chips similar to modern microchips, this work is a tremendous step forward for creating full quantum computers. It also provides a platform to work with quantum computer code and algorithms.



Source: EurekAlert!

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