Quantum leap in computing as Google claims 'supremacy'

Scientists claimed Wednesday to have achieved a near-mythical state of computing in which a new generation of machine vastly outperforms the world's fastest super-computer, known as "quantum supremacy".A team of experts working on Google's Sycamore machine said their quantum system had executed a calculation in 200 seconds that would have taken a classic computer 10,000 years to complete.This property, known as superposition, means a quantum computer, made up of several qubits, can crunch an eno