Researchers unveil quantum dot nanochip
1 min read
Researchers have created a transistor in a chip that is 10 times smaller than those in use, so small that it contains just seven atoms.
The breakthrough, reported in Nature Nanotechnology could mark the start of super fast, super powerful computing.
According to paper's co-author, Prof Michelle Simmons, director of the University of New South Wales centre of excellence for quantum computer technology, this achievement marks the first time scientists have been able to dictate the placement and behaviour of single atoms within a transistor. "We're basically controlling nature at the atomic scale," Prof Simmons said. "This is one of the key milestones in building a quantum computer."
At the heart of the electronic device is a 'quantum dot' which Prof Simmons says will allow more complex computations at much greater speeds than currently possible. This could also improve database searching and eventually lead to '100% secure communication'.
Prof Simmons claims that the single crystal dot was proof that it was possible to build a quantum computer in silicon. The atoms of the quantum dot are imbedded in one silicon crystal and the team's long term goal is to develop a single atom transistor.
"All our computers contain silicon chips," she said. "Building transistors at the atomic-scale means that anything electrical like computers and mobile phones will get smaller and faster while their functionality increases dramatically."
