9 years, 6 months ago

Quantum computers: Prospect of faster, more powerful machines a step closer after 'game-changing' breakthrough

Sign up to our free weekly IndyTech newsletter delivered straight to your inbox Sign up to our free IndyTech newsletter Sign up to our free IndyTech newsletter SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our privacy policy The prospect of quantum computers that are many times faster and more powerful than existing machines has come a step closer with a “game changing” breakthrough in the development of silicon chips based on the weird principles of quantum physics. However, quantum computers harness the strange behaviour of very small particles such as electrons which can exist in two states at once, due to quantum process known as superimposition, so that data is held as quantum bits or “qubits”. “We’ve demonstrated a two-qubit logic gate – the central building block of a quantum computer – and significantly done it in silicon,” Professor Dzurak said. In the quantum computer data is encoded in the “spin”, or magnetic orientation, of individual electrons.

The Independent

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