Quantum leap from Australian research promises super-fast computing power

The Guardian 

An Australian research team led by the renowned quantum physicist Prof Michelle Simmons has announced a major breakthrough in quantum computing, which researchers hope could lead to much greater computing power within a decade. 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 qubit is a quantum bit. In this design, it is built from single phosphorus atoms in silicon. In standard computing, a bit can exist in one of two states – 1 or 0. For qubits, it can be 1 or 0 or both simultaneously, which is referred to as a superposition.