Quantum Leap From Australian Research Promises Super-Fast Computing Power

An anonymous reader quotes a report from The Guardian: Simmons, a former Australian of the Year, and her team at the University of New South Wales announced in a paper published in Nature journal on Thursday that they have been able to achieve the first two-qubit gate between atom qubits in silicon, allowing them to communicate with each other at a 200 times faster rate than previously achieved at 0.8 nanoseconds. A two-qubit gate operates like a logic gate in traditional computing, and the team at UNSW was able to achieve the faster operation by putting the two atom qubits closer together than ever before — just 13 nanometers — and in real-time controllably observing and measuring their spin states. A scanning tunneling microscope was used to place the atoms in silicon after the optimal distance between the two qubits had been worked out. The research has been two decades in the making, after researchers in Australia opted to build a quantum computer on silicon material.

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